Home / 806,421.47-1,112,682.95-466,692.89

Finding the Fourth Proportional to 806,421.47, 1,112,682.95 and 466,692.89

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Solution

The fourth proportional to 806,421.47, 1,112,682.95 and 466,692.89 is: 643,932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,421.47 : 1,112,682.95 = 466,692.89 : x
  2. Step 2: Convert to fraction form
    806,421.47/1,112,682.95 = 466,692.89/x
  3. Step 3: Cross multiply
    806,421.47x = 1,112,682.95 × 466,692.89
  4. Step 4: Simplify right side
    806,421.47x = 519,281,223,013.86
  5. Step 5: Solve for x
    x = 519,281,223,013.86/806,421.47
  6. Step 6: Final answer
    x = 643,932.78

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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.