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Finding the Fourth Proportional to 657,501.80, 986,285.10 and 342,573.80

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Solution

The fourth proportional to 657,501.80, 986,285.10 and 342,573.80 is: 513,877.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,501.80 : 986,285.10 = 342,573.80 : x
  2. Step 2: Convert to fraction form
    657,501.80/986,285.10 = 342,573.80/x
  3. Step 3: Cross multiply
    657,501.80x = 986,285.10 × 342,573.80
  4. Step 4: Simplify right side
    657,501.80x = 337,875,434,590.38
  5. Step 5: Solve for x
    x = 337,875,434,590.38/657,501.80
  6. Step 6: Final answer
    x = 513,877.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.