Home / 976,543.20-1,464,814.80-345,520.80

Finding the Fourth Proportional to 976,543.20, 1,464,814.80 and 345,520.80

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Solution

The fourth proportional to 976,543.20, 1,464,814.80 and 345,520.80 is: 518,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,543.20 : 1,464,814.80 = 345,520.80 : x
  2. Step 2: Convert to fraction form
    976,543.20/1,464,814.80 = 345,520.80/x
  3. Step 3: Cross multiply
    976,543.20x = 1,464,814.80 × 345,520.80
  4. Step 4: Simplify right side
    976,543.20x = 506,123,981,547.84
  5. Step 5: Solve for x
    x = 506,123,981,547.84/976,543.20
  6. Step 6: Final answer
    x = 518,281.20

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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.