Home / 459,182.80-688,774.20-209,864.80

Finding the Fourth Proportional to 459,182.80, 688,774.20 and 209,864.80

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Solution

The fourth proportional to 459,182.80, 688,774.20 and 209,864.80 is: 314,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,182.80 : 688,774.20 = 209,864.80 : x
  2. Step 2: Convert to fraction form
    459,182.80/688,774.20 = 209,864.80/x
  3. Step 3: Cross multiply
    459,182.80x = 688,774.20 × 209,864.80
  4. Step 4: Simplify right side
    459,182.80x = 144,549,459,728.16
  5. Step 5: Solve for x
    x = 144,549,459,728.16/459,182.80
  6. Step 6: Final answer
    x = 314,797.20

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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.