Home / 739,707.72-1,020,543.06-417,378.12

Finding the Fourth Proportional to 739,707.72, 1,020,543.06 and 417,378.12

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Solution

The fourth proportional to 739,707.72, 1,020,543.06 and 417,378.12 is: 575,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,707.72 : 1,020,543.06 = 417,378.12 : x
  2. Step 2: Convert to fraction form
    739,707.72/1,020,543.06 = 417,378.12/x
  3. Step 3: Cross multiply
    739,707.72x = 1,020,543.06 × 417,378.12
  4. Step 4: Simplify right side
    739,707.72x = 425,952,343,761.85
  5. Step 5: Solve for x
    x = 425,952,343,761.85/739,707.72
  6. Step 6: Final answer
    x = 575,838.72

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Double scale
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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.