Home / 665,266.20-917,746.28-435,722.47

Finding the Fourth Proportional to 665,266.20, 917,746.28 and 435,722.47

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Solution

The fourth proportional to 665,266.20, 917,746.28 and 435,722.47 is: 601,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,266.20 : 917,746.28 = 435,722.47 : x
  2. Step 2: Convert to fraction form
    665,266.20/917,746.28 = 435,722.47/x
  3. Step 3: Cross multiply
    665,266.20x = 917,746.28 × 435,722.47
  4. Step 4: Simplify right side
    665,266.20x = 399,882,675,954.91
  5. Step 5: Solve for x
    x = 399,882,675,954.91/665,266.20
  6. Step 6: Final answer
    x = 601,086.72

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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.