Home / 990,643.50-1,367,105.04-537,934.50

Finding the Fourth Proportional to 990,643.50, 1,367,105.04 and 537,934.50

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Solution

The fourth proportional to 990,643.50, 1,367,105.04 and 537,934.50 is: 742,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,643.50 : 1,367,105.04 = 537,934.50 : x
  2. Step 2: Convert to fraction form
    990,643.50/1,367,105.04 = 537,934.50/x
  3. Step 3: Cross multiply
    990,643.50x = 1,367,105.04 × 537,934.50
  4. Step 4: Simplify right side
    990,643.50x = 735,412,966,139.88
  5. Step 5: Solve for x
    x = 735,412,966,139.88/990,643.50
  6. Step 6: Final answer
    x = 742,358.85

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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.