Home / 912,958.20-1,369,437.30-889,630.20

Finding the Fourth Proportional to 912,958.20, 1,369,437.30 and 889,630.20

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Solution

The fourth proportional to 912,958.20, 1,369,437.30 and 889,630.20 is: 1,334,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,958.20 : 1,369,437.30 = 889,630.20 : x
  2. Step 2: Convert to fraction form
    912,958.20/1,369,437.30 = 889,630.20/x
  3. Step 3: Cross multiply
    912,958.20x = 1,369,437.30 × 889,630.20
  4. Step 4: Simplify right side
    912,958.20x = 1,218,292,779,086.46
  5. Step 5: Solve for x
    x = 1,218,292,779,086.46/912,958.20
  6. Step 6: Final answer
    x = 1,334,445.30

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Double scale
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Similar ratio
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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.