Home / 742,439.41-1,024,567.13-402,907.66

Finding the Fourth Proportional to 742,439.41, 1,024,567.13 and 402,907.66

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Solution

The fourth proportional to 742,439.41, 1,024,567.13 and 402,907.66 is: 556,012.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,439.41 : 1,024,567.13 = 402,907.66 : x
  2. Step 2: Convert to fraction form
    742,439.41/1,024,567.13 = 402,907.66/x
  3. Step 3: Cross multiply
    742,439.41x = 1,024,567.13 × 402,907.66
  4. Step 4: Simplify right side
    742,439.41x = 412,805,944,861.22
  5. Step 5: Solve for x
    x = 412,805,944,861.22/742,439.41
  6. Step 6: Final answer
    x = 556,012.97

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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.