Home / 949,038.78-1,309,669.98-513,454.74

Finding the Fourth Proportional to 949,038.78, 1,309,669.98 and 513,454.74

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Solution

The fourth proportional to 949,038.78, 1,309,669.98 and 513,454.74 is: 708,565.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,038.78 : 1,309,669.98 = 513,454.74 : x
  2. Step 2: Convert to fraction form
    949,038.78/1,309,669.98 = 513,454.74/x
  3. Step 3: Cross multiply
    949,038.78x = 1,309,669.98 × 513,454.74
  4. Step 4: Simplify right side
    949,038.78x = 672,456,259,066.71
  5. Step 5: Solve for x
    x = 672,456,259,066.71/949,038.78
  6. Step 6: Final answer
    x = 708,565.63

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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.