Home / 1,000,539.04-1,380,470.16-643,050.40

Finding the Fourth Proportional to 1,000,539.04, 1,380,470.16 and 643,050.40

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Solution

The fourth proportional to 1,000,539.04, 1,380,470.16 and 643,050.40 is: 887,233.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,539.04 : 1,380,470.16 = 643,050.40 : x
  2. Step 2: Convert to fraction form
    1,000,539.04/1,380,470.16 = 643,050.40/x
  3. Step 3: Cross multiply
    1,000,539.04x = 1,380,470.16 × 643,050.40
  4. Step 4: Simplify right side
    1,000,539.04x = 887,711,888,576.06
  5. Step 5: Solve for x
    x = 887,711,888,576.06/1,000,539.04
  6. Step 6: Final answer
    x = 887,233.63

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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.