Home / 771,785.55-1,064,724.80-465,691.21

Finding the Fourth Proportional to 771,785.55, 1,064,724.80 and 465,691.21

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Solution

The fourth proportional to 771,785.55, 1,064,724.80 and 465,691.21 is: 642,449.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,785.55 : 1,064,724.80 = 465,691.21 : x
  2. Step 2: Convert to fraction form
    771,785.55/1,064,724.80 = 465,691.21/x
  3. Step 3: Cross multiply
    771,785.55x = 1,064,724.80 × 465,691.21
  4. Step 4: Simplify right side
    771,785.55x = 495,832,975,438.74
  5. Step 5: Solve for x
    x = 495,832,975,438.74/771,785.55
  6. Step 6: Final answer
    x = 642,449.16

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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.