Home / 991,692.40-1,486,666.39-393,073.85

Finding the Fourth Proportional to 991,692.40, 1,486,666.39 and 393,073.85

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Solution

The fourth proportional to 991,692.40, 1,486,666.39 and 393,073.85 is: 589,265.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,692.40 : 1,486,666.39 = 393,073.85 : x
  2. Step 2: Convert to fraction form
    991,692.40/1,486,666.39 = 393,073.85/x
  3. Step 3: Cross multiply
    991,692.40x = 1,486,666.39 × 393,073.85
  4. Step 4: Simplify right side
    991,692.40x = 584,369,681,582.90
  5. Step 5: Solve for x
    x = 584,369,681,582.90/991,692.40
  6. Step 6: Final answer
    x = 589,265.06

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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.