Home / 524,448,278.40-786,672,417.60-320,374,934.40

Finding the Fourth Proportional to 524,448,278.40, 786,672,417.60 and 320,374,934.40

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Solution

The fourth proportional to 524,448,278.40, 786,672,417.60 and 320,374,934.40 is: 480,562,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,448,278.40 : 786,672,417.60 = 320,374,934.40 : x
  2. Step 2: Convert to fraction form
    524,448,278.40/786,672,417.60 = 320,374,934.40/x
  3. Step 3: Cross multiply
    524,448,278.40x = 786,672,417.60 × 320,374,934.40
  4. Step 4: Simplify right side
    524,448,278.40x = 252,030,124,182,889,408
  5. Step 5: Solve for x
    x = 252,030,124,182,889,408/524,448,278.40
  6. Step 6: Final answer
    x = 480,562,401.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.