Home / 742,429.44-1,024,552.59-402,897.69

Finding the Fourth Proportional to 742,429.44, 1,024,552.59 and 402,897.69

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Solution

The fourth proportional to 742,429.44, 1,024,552.59 and 402,897.69 is: 555,998.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,429.44 : 1,024,552.59 = 402,897.69 : x
  2. Step 2: Convert to fraction form
    742,429.44/1,024,552.59 = 402,897.69/x
  3. Step 3: Cross multiply
    742,429.44x = 1,024,552.59 × 402,897.69
  4. Step 4: Simplify right side
    742,429.44x = 412,789,871,794.52
  5. Step 5: Solve for x
    x = 412,789,871,794.52/742,429.44
  6. Step 6: Final answer
    x = 555,998.79

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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.