Home / 1,069,375.10-1,604,264.96-429,728.63

Finding the Fourth Proportional to 1,069,375.10, 1,604,264.96 and 429,728.63

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Solution

The fourth proportional to 1,069,375.10, 1,604,264.96 and 429,728.63 is: 644,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,375.10 : 1,604,264.96 = 429,728.63 : x
  2. Step 2: Convert to fraction form
    1,069,375.10/1,604,264.96 = 429,728.63/x
  3. Step 3: Cross multiply
    1,069,375.10x = 1,604,264.96 × 429,728.63
  4. Step 4: Simplify right side
    1,069,375.10x = 689,398,585,279.82
  5. Step 5: Solve for x
    x = 689,398,585,279.82/1,069,375.10
  6. Step 6: Final answer
    x = 644,674.24

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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.