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Finding the Fourth Proportional to 979,290.52, 1,351,430.94 and 543,715

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Solution

The fourth proportional to 979,290.52, 1,351,430.94 and 543,715 is: 750,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,290.52 : 1,351,430.94 = 543,715 : x
  2. Step 2: Convert to fraction form
    979,290.52/1,351,430.94 = 543,715/x
  3. Step 3: Cross multiply
    979,290.52x = 1,351,430.94 × 543,715
  4. Step 4: Simplify right side
    979,290.52x = 734,793,273,542.10
  5. Step 5: Solve for x
    x = 734,793,273,542.10/979,290.52
  6. Step 6: Final answer
    x = 750,332.26

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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.