Home / 749,439.20-1,034,250.72-409,907.45

Finding the Fourth Proportional to 749,439.20, 1,034,250.72 and 409,907.45

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Solution

The fourth proportional to 749,439.20, 1,034,250.72 and 409,907.45 is: 565,685.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,439.20 : 1,034,250.72 = 409,907.45 : x
  2. Step 2: Convert to fraction form
    749,439.20/1,034,250.72 = 409,907.45/x
  3. Step 3: Cross multiply
    749,439.20x = 1,034,250.72 × 409,907.45
  4. Step 4: Simplify right side
    749,439.20x = 423,947,075,295.86
  5. Step 5: Solve for x
    x = 423,947,075,295.86/749,439.20
  6. Step 6: Final answer
    x = 565,685.75

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Double scale
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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.