Home / 810,011.34-1,215,752.36-431,248.46

Finding the Fourth Proportional to 810,011.34, 1,215,752.36 and 431,248.46

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Solution

The fourth proportional to 810,011.34, 1,215,752.36 and 431,248.46 is: 647,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,011.34 : 1,215,752.36 = 431,248.46 : x
  2. Step 2: Convert to fraction form
    810,011.34/1,215,752.36 = 431,248.46/x
  3. Step 3: Cross multiply
    810,011.34x = 1,215,752.36 × 431,248.46
  4. Step 4: Simplify right side
    810,011.34x = 524,291,324,756.36
  5. Step 5: Solve for x
    x = 524,291,324,756.36/810,011.34
  6. Step 6: Final answer
    x = 647,264.18

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Double scale
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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.