Home / 705,577.20-1,057,588.20-390,260.40

Finding the Fourth Proportional to 705,577.20, 1,057,588.20 and 390,260.40

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Solution

The fourth proportional to 705,577.20, 1,057,588.20 and 390,260.40 is: 584,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,577.20 : 1,057,588.20 = 390,260.40 : x
  2. Step 2: Convert to fraction form
    705,577.20/1,057,588.20 = 390,260.40/x
  3. Step 3: Cross multiply
    705,577.20x = 1,057,588.20 × 390,260.40
  4. Step 4: Simplify right side
    705,577.20x = 412,734,793,967.28
  5. Step 5: Solve for x
    x = 412,734,793,967.28/705,577.20
  6. Step 6: Final answer
    x = 584,960.50

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Similar ratio
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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.