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Finding the Fourth Proportional to 655,226.64, 904,210.90 and 368,746.72

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Solution

The fourth proportional to 655,226.64, 904,210.90 and 368,746.72 is: 508,869.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,226.64 : 904,210.90 = 368,746.72 : x
  2. Step 2: Convert to fraction form
    655,226.64/904,210.90 = 368,746.72/x
  3. Step 3: Cross multiply
    655,226.64x = 904,210.90 × 368,746.72
  4. Step 4: Simplify right side
    655,226.64x = 333,424,803,563.25
  5. Step 5: Solve for x
    x = 333,424,803,563.25/655,226.64
  6. Step 6: Final answer
    x = 508,869.43

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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.