Home / 949,108.40-1,424,008.20-388,545.20

Finding the Fourth Proportional to 949,108.40, 1,424,008.20 and 388,545.20

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Solution

The fourth proportional to 949,108.40, 1,424,008.20 and 388,545.20 is: 582,959.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,108.40 : 1,424,008.20 = 388,545.20 : x
  2. Step 2: Convert to fraction form
    949,108.40/1,424,008.20 = 388,545.20/x
  3. Step 3: Cross multiply
    949,108.40x = 1,424,008.20 × 388,545.20
  4. Step 4: Simplify right side
    949,108.40x = 553,291,550,870.64
  5. Step 5: Solve for x
    x = 553,291,550,870.64/949,108.40
  6. Step 6: Final answer
    x = 582,959.28

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1.5x scale

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.