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Finding the Fourth Proportional to 657,275.04, 907,040.16 and 355,469.04

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Solution

The fourth proportional to 657,275.04, 907,040.16 and 355,469.04 is: 490,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,275.04 : 907,040.16 = 355,469.04 : x
  2. Step 2: Convert to fraction form
    657,275.04/907,040.16 = 355,469.04/x
  3. Step 3: Cross multiply
    657,275.04x = 907,040.16 × 355,469.04
  4. Step 4: Simplify right side
    657,275.04x = 322,424,694,916.65
  5. Step 5: Solve for x
    x = 322,424,694,916.65/657,275.04
  6. Step 6: Final answer
    x = 490,547.60

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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.