Home / 781,462.16-1,078,628.04-459,388.08

Finding the Fourth Proportional to 781,462.16, 1,078,628.04 and 459,388.08

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Solution

The fourth proportional to 781,462.16, 1,078,628.04 and 459,388.08 is: 634,079.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,462.16 : 1,078,628.04 = 459,388.08 : x
  2. Step 2: Convert to fraction form
    781,462.16/1,078,628.04 = 459,388.08/x
  3. Step 3: Cross multiply
    781,462.16x = 1,078,628.04 × 459,388.08
  4. Step 4: Simplify right side
    781,462.16x = 495,508,864,329.76
  5. Step 5: Solve for x
    x = 495,508,864,329.76/781,462.16
  6. Step 6: Final answer
    x = 634,079.15

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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.