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Finding the Fourth Proportional to 655,572.18, 904,706.64 and 369,102.72

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Solution

The fourth proportional to 655,572.18, 904,706.64 and 369,102.72 is: 509,371.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,572.18 : 904,706.64 = 369,102.72 : x
  2. Step 2: Convert to fraction form
    655,572.18/904,706.64 = 369,102.72/x
  3. Step 3: Cross multiply
    655,572.18x = 904,706.64 × 369,102.72
  4. Step 4: Simplify right side
    655,572.18x = 333,929,681,626.06
  5. Step 5: Solve for x
    x = 333,929,681,626.06/655,572.18
  6. Step 6: Final answer
    x = 509,371.34

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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.