Home / 781,899.75-1,079,014.37-442,368

Finding the Fourth Proportional to 781,899.75, 1,079,014.37 and 442,368

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Solution

The fourth proportional to 781,899.75, 1,079,014.37 and 442,368 is: 610,463.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,899.75 : 1,079,014.37 = 442,368 : x
  2. Step 2: Convert to fraction form
    781,899.75/1,079,014.37 = 442,368/x
  3. Step 3: Cross multiply
    781,899.75x = 1,079,014.37 × 442,368
  4. Step 4: Simplify right side
    781,899.75x = 477,321,426,616.32
  5. Step 5: Solve for x
    x = 477,321,426,616.32/781,899.75
  6. Step 6: Final answer
    x = 610,463.72

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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.