Home / 513,216,272.40-769,824,408.60-503,012,605.20

Finding the Fourth Proportional to 513,216,272.40, 769,824,408.60 and 503,012,605.20

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Solution

The fourth proportional to 513,216,272.40, 769,824,408.60 and 503,012,605.20 is: 754,518,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,216,272.40 : 769,824,408.60 = 503,012,605.20 : x
  2. Step 2: Convert to fraction form
    513,216,272.40/769,824,408.60 = 503,012,605.20/x
  3. Step 3: Cross multiply
    513,216,272.40x = 769,824,408.60 × 503,012,605.20
  4. Step 4: Simplify right side
    513,216,272.40x = 387,231,381,316,435,264
  5. Step 5: Solve for x
    x = 387,231,381,316,435,264/513,216,272.40
  6. Step 6: Final answer
    x = 754,518,907.80

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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.