Home / 690,641.16-1,035,479.22-306,180.92

Finding the Fourth Proportional to 690,641.16, 1,035,479.22 and 306,180.92

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Solution

The fourth proportional to 690,641.16, 1,035,479.22 and 306,180.92 is: 459,057.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,641.16 : 1,035,479.22 = 306,180.92 : x
  2. Step 2: Convert to fraction form
    690,641.16/1,035,479.22 = 306,180.92/x
  3. Step 3: Cross multiply
    690,641.16x = 1,035,479.22 × 306,180.92
  4. Step 4: Simplify right side
    690,641.16x = 317,043,980,220.48
  5. Step 5: Solve for x
    x = 317,043,980,220.48/690,641.16
  6. Step 6: Final answer
    x = 459,057.47

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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.