Home / 761,331.16-1,142,024.70-255,909.40

Finding the Fourth Proportional to 761,331.16, 1,142,024.70 and 255,909.40

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Solution

The fourth proportional to 761,331.16, 1,142,024.70 and 255,909.40 is: 383,873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,331.16 : 1,142,024.70 = 255,909.40 : x
  2. Step 2: Convert to fraction form
    761,331.16/1,142,024.70 = 255,909.40/x
  3. Step 3: Cross multiply
    761,331.16x = 1,142,024.70 × 255,909.40
  4. Step 4: Simplify right side
    761,331.16x = 292,254,855,762.18
  5. Step 5: Solve for x
    x = 292,254,855,762.18/761,331.16
  6. Step 6: Final answer
    x = 383,873.50

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.