Home / 786,678.40-1,180,600.80-520,350.40

Finding the Fourth Proportional to 786,678.40, 1,180,600.80 and 520,350.40

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Solution

The fourth proportional to 786,678.40, 1,180,600.80 and 520,350.40 is: 780,911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,678.40 : 1,180,600.80 = 520,350.40 : x
  2. Step 2: Convert to fraction form
    786,678.40/1,180,600.80 = 520,350.40/x
  3. Step 3: Cross multiply
    786,678.40x = 1,180,600.80 × 520,350.40
  4. Step 4: Simplify right side
    786,678.40x = 614,326,098,520.32
  5. Step 5: Solve for x
    x = 614,326,098,520.32/786,678.40
  6. Step 6: Final answer
    x = 780,911.36

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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.