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Finding the Fourth Proportional to 508,677.74, 702,048.40 and 304,737.36

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Solution

The fourth proportional to 508,677.74, 702,048.40 and 304,737.36 is: 420,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,677.74 : 702,048.40 = 304,737.36 : x
  2. Step 2: Convert to fraction form
    508,677.74/702,048.40 = 304,737.36/x
  3. Step 3: Cross multiply
    508,677.74x = 702,048.40 × 304,737.36
  4. Step 4: Simplify right side
    508,677.74x = 213,940,376,008.22
  5. Step 5: Solve for x
    x = 213,940,376,008.22/508,677.74
  6. Step 6: Final answer
    x = 420,581.36

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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.