Home / 817,471.64-1,226,291.08-312,457.70

Finding the Fourth Proportional to 817,471.64, 1,226,291.08 and 312,457.70

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Solution

The fourth proportional to 817,471.64, 1,226,291.08 and 312,457.70 is: 468,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,471.64 : 1,226,291.08 = 312,457.70 : x
  2. Step 2: Convert to fraction form
    817,471.64/1,226,291.08 = 312,457.70/x
  3. Step 3: Cross multiply
    817,471.64x = 1,226,291.08 × 312,457.70
  4. Step 4: Simplify right side
    817,471.64x = 383,164,090,387.32
  5. Step 5: Solve for x
    x = 383,164,090,387.32/817,471.64
  6. Step 6: Final answer
    x = 468,718.51

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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.