Home / 437,564.20-656,492.10-390,530.20

Finding the Fourth Proportional to 437,564.20, 656,492.10 and 390,530.20

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Solution

The fourth proportional to 437,564.20, 656,492.10 and 390,530.20 is: 585,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,564.20 : 656,492.10 = 390,530.20 : x
  2. Step 2: Convert to fraction form
    437,564.20/656,492.10 = 390,530.20/x
  3. Step 3: Cross multiply
    437,564.20x = 656,492.10 × 390,530.20
  4. Step 4: Simplify right side
    437,564.20x = 256,379,991,111.42
  5. Step 5: Solve for x
    x = 256,379,991,111.42/437,564.20
  6. Step 6: Final answer
    x = 585,925.43

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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.