Home / 688,734.98-1,031,384.29-435,250.75

Finding the Fourth Proportional to 688,734.98, 1,031,384.29 and 435,250.75

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Solution

The fourth proportional to 688,734.98, 1,031,384.29 and 435,250.75 is: 651,790.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,734.98 : 1,031,384.29 = 435,250.75 : x
  2. Step 2: Convert to fraction form
    688,734.98/1,031,384.29 = 435,250.75/x
  3. Step 3: Cross multiply
    688,734.98x = 1,031,384.29 × 435,250.75
  4. Step 4: Simplify right side
    688,734.98x = 448,910,785,760.72
  5. Step 5: Solve for x
    x = 448,910,785,760.72/688,734.98
  6. Step 6: Final answer
    x = 651,790.31

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1.5x scale

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.