Home / 977,456.30-1,465,018.05-408,836.30

Finding the Fourth Proportional to 977,456.30, 1,465,018.05 and 408,836.30

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Solution

The fourth proportional to 977,456.30, 1,465,018.05 and 408,836.30 is: 612,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,456.30 : 1,465,018.05 = 408,836.30 : x
  2. Step 2: Convert to fraction form
    977,456.30/1,465,018.05 = 408,836.30/x
  3. Step 3: Cross multiply
    977,456.30x = 1,465,018.05 × 408,836.30
  4. Step 4: Simplify right side
    977,456.30x = 598,952,558,995.22
  5. Step 5: Solve for x
    x = 598,952,558,995.22/977,456.30
  6. Step 6: Final answer
    x = 612,766.59

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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.