Home / 1,084,411.20-1,495,544.40-813,089.28

Finding the Fourth Proportional to 1,084,411.20, 1,495,544.40 and 813,089.28

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Solution

The fourth proportional to 1,084,411.20, 1,495,544.40 and 813,089.28 is: 1,121,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084,411.20 : 1,495,544.40 = 813,089.28 : x
  2. Step 2: Convert to fraction form
    1,084,411.20/1,495,544.40 = 813,089.28/x
  3. Step 3: Cross multiply
    1,084,411.20x = 1,495,544.40 × 813,089.28
  4. Step 4: Simplify right side
    1,084,411.20x = 1,216,011,119,404.03
  5. Step 5: Solve for x
    x = 1,216,011,119,404.03/1,084,411.20
  6. Step 6: Final answer
    x = 1,121,356.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.