Home / 912,948.60-1,369,422.90-889,620.60

Finding the Fourth Proportional to 912,948.60, 1,369,422.90 and 889,620.60

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Solution

The fourth proportional to 912,948.60, 1,369,422.90 and 889,620.60 is: 1,334,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,948.60 : 1,369,422.90 = 889,620.60 : x
  2. Step 2: Convert to fraction form
    912,948.60/1,369,422.90 = 889,620.60/x
  3. Step 3: Cross multiply
    912,948.60x = 1,369,422.90 × 889,620.60
  4. Step 4: Simplify right side
    912,948.60x = 1,218,266,821,951.74
  5. Step 5: Solve for x
    x = 1,218,266,821,951.74/912,948.60
  6. Step 6: Final answer
    x = 1,334,430.90

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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.