Home / 1,038,920.80-1,558,381.20-996,930.40

Finding the Fourth Proportional to 1,038,920.80, 1,558,381.20 and 996,930.40

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Solution

The fourth proportional to 1,038,920.80, 1,558,381.20 and 996,930.40 is: 1,495,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,920.80 : 1,558,381.20 = 996,930.40 : x
  2. Step 2: Convert to fraction form
    1,038,920.80/1,558,381.20 = 996,930.40/x
  3. Step 3: Cross multiply
    1,038,920.80x = 1,558,381.20 × 996,930.40
  4. Step 4: Simplify right side
    1,038,920.80x = 1,553,597,593,068.48
  5. Step 5: Solve for x
    x = 1,553,597,593,068.48/1,038,920.80
  6. Step 6: Final answer
    x = 1,495,395.60

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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.