Home / 870,358.24-1,304,293.20-495,606.88

Finding the Fourth Proportional to 870,358.24, 1,304,293.20 and 495,606.88

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Solution

The fourth proportional to 870,358.24, 1,304,293.20 and 495,606.88 is: 742,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,358.24 : 1,304,293.20 = 495,606.88 : x
  2. Step 2: Convert to fraction form
    870,358.24/1,304,293.20 = 495,606.88/x
  3. Step 3: Cross multiply
    870,358.24x = 1,304,293.20 × 495,606.88
  4. Step 4: Simplify right side
    870,358.24x = 646,416,683,457.22
  5. Step 5: Solve for x
    x = 646,416,683,457.22/870,358.24
  6. Step 6: Final answer
    x = 742,701.86

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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.