Home / 1,021,331.68-1,532,102.40-390,775.84

Finding the Fourth Proportional to 1,021,331.68, 1,532,102.40 and 390,775.84

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Solution

The fourth proportional to 1,021,331.68, 1,532,102.40 and 390,775.84 is: 586,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,331.68 : 1,532,102.40 = 390,775.84 : x
  2. Step 2: Convert to fraction form
    1,021,331.68/1,532,102.40 = 390,775.84/x
  3. Step 3: Cross multiply
    1,021,331.68x = 1,532,102.40 × 390,775.84
  4. Step 4: Simplify right side
    1,021,331.68x = 598,708,602,326.02
  5. Step 5: Solve for x
    x = 598,708,602,326.02/1,021,331.68
  6. Step 6: Final answer
    x = 586,203.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.