Home / 688,068.72-1,031,562.27-434,816.55

Finding the Fourth Proportional to 688,068.72, 1,031,562.27 and 434,816.55

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Solution

The fourth proportional to 688,068.72, 1,031,562.27 and 434,816.55 is: 651,883.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,068.72 : 1,031,562.27 = 434,816.55 : x
  2. Step 2: Convert to fraction form
    688,068.72/1,031,562.27 = 434,816.55/x
  3. Step 3: Cross multiply
    688,068.72x = 1,031,562.27 × 434,816.55
  4. Step 4: Simplify right side
    688,068.72x = 448,540,347,351.57
  5. Step 5: Solve for x
    x = 448,540,347,351.57/688,068.72
  6. Step 6: Final answer
    x = 651,883.07

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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.