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Finding the Fourth Proportional to 531,987.85, 734,139.47 and 302,545.22

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Solution

The fourth proportional to 531,987.85, 734,139.47 and 302,545.22 is: 417,510.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,987.85 : 734,139.47 = 302,545.22 : x
  2. Step 2: Convert to fraction form
    531,987.85/734,139.47 = 302,545.22/x
  3. Step 3: Cross multiply
    531,987.85x = 734,139.47 × 302,545.22
  4. Step 4: Simplify right side
    531,987.85x = 222,110,385,949.11
  5. Step 5: Solve for x
    x = 222,110,385,949.11/531,987.85
  6. Step 6: Final answer
    x = 417,510.26

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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.