Home / 912,981.60-1,369,472.40-889,653.60

Finding the Fourth Proportional to 912,981.60, 1,369,472.40 and 889,653.60

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Solution

The fourth proportional to 912,981.60, 1,369,472.40 and 889,653.60 is: 1,334,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,981.60 : 1,369,472.40 = 889,653.60 : x
  2. Step 2: Convert to fraction form
    912,981.60/1,369,472.40 = 889,653.60/x
  3. Step 3: Cross multiply
    912,981.60x = 1,369,472.40 × 889,653.60
  4. Step 4: Simplify right side
    912,981.60x = 1,218,356,050,760.64
  5. Step 5: Solve for x
    x = 1,218,356,050,760.64/912,981.60
  6. Step 6: Final answer
    x = 1,334,480.40

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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.