Home / 926,426.40-1,389,639.60-912,429.60

Finding the Fourth Proportional to 926,426.40, 1,389,639.60 and 912,429.60

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Solution

The fourth proportional to 926,426.40, 1,389,639.60 and 912,429.60 is: 1,368,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,426.40 : 1,389,639.60 = 912,429.60 : x
  2. Step 2: Convert to fraction form
    926,426.40/1,389,639.60 = 912,429.60/x
  3. Step 3: Cross multiply
    926,426.40x = 1,389,639.60 × 912,429.60
  4. Step 4: Simplify right side
    926,426.40x = 1,267,948,304,372.16
  5. Step 5: Solve for x
    x = 1,267,948,304,372.16/926,426.40
  6. Step 6: Final answer
    x = 1,368,644.40

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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.