Home / 812,508.24-1,121,259.56-468,341.89

Finding the Fourth Proportional to 812,508.24, 1,121,259.56 and 468,341.89

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Solution

The fourth proportional to 812,508.24, 1,121,259.56 and 468,341.89 is: 646,310.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,508.24 : 1,121,259.56 = 468,341.89 : x
  2. Step 2: Convert to fraction form
    812,508.24/1,121,259.56 = 468,341.89/x
  3. Step 3: Cross multiply
    812,508.24x = 1,121,259.56 × 468,341.89
  4. Step 4: Simplify right side
    812,508.24x = 525,132,819,878.67
  5. Step 5: Solve for x
    x = 525,132,819,878.67/812,508.24
  6. Step 6: Final answer
    x = 646,310.76

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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.