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Finding the Fourth Proportional to 657,639, 907,542.43 and 371,152.94

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Solution

The fourth proportional to 657,639, 907,542.43 and 371,152.94 is: 512,191.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,639 : 907,542.43 = 371,152.94 : x
  2. Step 2: Convert to fraction form
    657,639/907,542.43 = 371,152.94/x
  3. Step 3: Cross multiply
    657,639x = 907,542.43 × 371,152.94
  4. Step 4: Simplify right side
    657,639x = 336,837,035,603.65
  5. Step 5: Solve for x
    x = 336,837,035,603.65/657,639
  6. Step 6: Final answer
    x = 512,191.39

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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.