Home / 739,420.23-1,020,447.18-417,012.69

Finding the Fourth Proportional to 739,420.23, 1,020,447.18 and 417,012.69

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Solution

The fourth proportional to 739,420.23, 1,020,447.18 and 417,012.69 is: 575,504.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,420.23 : 1,020,447.18 = 417,012.69 : x
  2. Step 2: Convert to fraction form
    739,420.23/1,020,447.18 = 417,012.69/x
  3. Step 3: Cross multiply
    739,420.23x = 1,020,447.18 × 417,012.69
  4. Step 4: Simplify right side
    739,420.23x = 425,539,423,534.71
  5. Step 5: Solve for x
    x = 425,539,423,534.71/739,420.23
  6. Step 6: Final answer
    x = 575,504.17

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Double scale
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Similar ratio
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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.