Home / 1,428,415.08-2,142,581.10-417,560.78

Finding the Fourth Proportional to 1,428,415.08, 2,142,581.10 and 417,560.78

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Solution

The fourth proportional to 1,428,415.08, 2,142,581.10 and 417,560.78 is: 626,329.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,415.08 : 2,142,581.10 = 417,560.78 : x
  2. Step 2: Convert to fraction form
    1,428,415.08/2,142,581.10 = 417,560.78/x
  3. Step 3: Cross multiply
    1,428,415.08x = 2,142,581.10 × 417,560.78
  4. Step 4: Simplify right side
    1,428,415.08x = 894,657,835,329.26
  5. Step 5: Solve for x
    x = 894,657,835,329.26/1,428,415.08
  6. Step 6: Final answer
    x = 626,329.03

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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.