Home / 870,909.60-1,306,364.40-231,212.10

Finding the Fourth Proportional to 870,909.60, 1,306,364.40 and 231,212.10

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Solution

The fourth proportional to 870,909.60, 1,306,364.40 and 231,212.10 is: 346,818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,909.60 : 1,306,364.40 = 231,212.10 : x
  2. Step 2: Convert to fraction form
    870,909.60/1,306,364.40 = 231,212.10/x
  3. Step 3: Cross multiply
    870,909.60x = 1,306,364.40 × 231,212.10
  4. Step 4: Simplify right side
    870,909.60x = 302,047,256,289.24
  5. Step 5: Solve for x
    x = 302,047,256,289.24/870,909.60
  6. Step 6: Final answer
    x = 346,818.15

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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.