Home / 712,052.08-982,633.34-389,782.80

Finding the Fourth Proportional to 712,052.08, 982,633.34 and 389,782.80

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Solution

The fourth proportional to 712,052.08, 982,633.34 and 389,782.80 is: 537,901.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,052.08 : 982,633.34 = 389,782.80 : x
  2. Step 2: Convert to fraction form
    712,052.08/982,633.34 = 389,782.80/x
  3. Step 3: Cross multiply
    712,052.08x = 982,633.34 × 389,782.80
  4. Step 4: Simplify right side
    712,052.08x = 383,013,574,638.55
  5. Step 5: Solve for x
    x = 383,013,574,638.55/712,052.08
  6. Step 6: Final answer
    x = 537,901.07

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Double scale
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1.5x scale

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.