Home / 725,127.81-1,000,702.52-419,300.16

Finding the Fourth Proportional to 725,127.81, 1,000,702.52 and 419,300.16

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Solution

The fourth proportional to 725,127.81, 1,000,702.52 and 419,300.16 is: 578,649.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,127.81 : 1,000,702.52 = 419,300.16 : x
  2. Step 2: Convert to fraction form
    725,127.81/1,000,702.52 = 419,300.16/x
  3. Step 3: Cross multiply
    725,127.81x = 1,000,702.52 × 419,300.16
  4. Step 4: Simplify right side
    725,127.81x = 419,594,726,748.40
  5. Step 5: Solve for x
    x = 419,594,726,748.40/725,127.81
  6. Step 6: Final answer
    x = 578,649.34

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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.