Home / 880,713.64-1,215,459.78-498,808.36

Finding the Fourth Proportional to 880,713.64, 1,215,459.78 and 498,808.36

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Solution

The fourth proportional to 880,713.64, 1,215,459.78 and 498,808.36 is: 688,397.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,713.64 : 1,215,459.78 = 498,808.36 : x
  2. Step 2: Convert to fraction form
    880,713.64/1,215,459.78 = 498,808.36/x
  3. Step 3: Cross multiply
    880,713.64x = 1,215,459.78 × 498,808.36
  4. Step 4: Simplify right side
    880,713.64x = 606,281,499,507.76
  5. Step 5: Solve for x
    x = 606,281,499,507.76/880,713.64
  6. Step 6: Final answer
    x = 688,397.99

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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.