Home / 719,890.02-1,080,031.89-315,008.61

Finding the Fourth Proportional to 719,890.02, 1,080,031.89 and 315,008.61

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Solution

The fourth proportional to 719,890.02, 1,080,031.89 and 315,008.61 is: 472,599.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,890.02 : 1,080,031.89 = 315,008.61 : x
  2. Step 2: Convert to fraction form
    719,890.02/1,080,031.89 = 315,008.61/x
  3. Step 3: Cross multiply
    719,890.02x = 1,080,031.89 × 315,008.61
  4. Step 4: Simplify right side
    719,890.02x = 340,219,344,424.57
  5. Step 5: Solve for x
    x = 340,219,344,424.57/719,890.02
  6. Step 6: Final answer
    x = 472,599.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.