Home / 1,069,380.85-1,604,273.59-429,734.38

Finding the Fourth Proportional to 1,069,380.85, 1,604,273.59 and 429,734.38

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Solution

The fourth proportional to 1,069,380.85, 1,604,273.59 and 429,734.38 is: 644,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,380.85 : 1,604,273.59 = 429,734.38 : x
  2. Step 2: Convert to fraction form
    1,069,380.85/1,604,273.59 = 429,734.38/x
  3. Step 3: Cross multiply
    1,069,380.85x = 1,604,273.59 × 429,734.38
  4. Step 4: Simplify right side
    1,069,380.85x = 689,411,516,549.02
  5. Step 5: Solve for x
    x = 689,411,516,549.02/1,069,380.85
  6. Step 6: Final answer
    x = 644,682.87

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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.