Home / 787,395.60-1,086,605.64-429,699.60

Finding the Fourth Proportional to 787,395.60, 1,086,605.64 and 429,699.60

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Solution

The fourth proportional to 787,395.60, 1,086,605.64 and 429,699.60 is: 592,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,395.60 : 1,086,605.64 = 429,699.60 : x
  2. Step 2: Convert to fraction form
    787,395.60/1,086,605.64 = 429,699.60/x
  3. Step 3: Cross multiply
    787,395.60x = 1,086,605.64 × 429,699.60
  4. Step 4: Simplify right side
    787,395.60x = 466,914,008,865.74
  5. Step 5: Solve for x
    x = 466,914,008,865.74/787,395.60
  6. Step 6: Final answer
    x = 592,985.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.