Home / 990,679.62-1,367,142.93-537,970.62

Finding the Fourth Proportional to 990,679.62, 1,367,142.93 and 537,970.62

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Solution

The fourth proportional to 990,679.62, 1,367,142.93 and 537,970.62 is: 742,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,679.62 : 1,367,142.93 = 537,970.62 : x
  2. Step 2: Convert to fraction form
    990,679.62/1,367,142.93 = 537,970.62/x
  3. Step 3: Cross multiply
    990,679.62x = 1,367,142.93 × 537,970.62
  4. Step 4: Simplify right side
    990,679.62x = 735,482,729,680.72
  5. Step 5: Solve for x
    x = 735,482,729,680.72/990,679.62
  6. Step 6: Final answer
    x = 742,402.20

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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.