Home / 730,278.57-1,007,831.72-407,990.41

Finding the Fourth Proportional to 730,278.57, 1,007,831.72 and 407,990.41

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Solution

The fourth proportional to 730,278.57, 1,007,831.72 and 407,990.41 is: 563,053.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,278.57 : 1,007,831.72 = 407,990.41 : x
  2. Step 2: Convert to fraction form
    730,278.57/1,007,831.72 = 407,990.41/x
  3. Step 3: Cross multiply
    730,278.57x = 1,007,831.72 × 407,990.41
  4. Step 4: Simplify right side
    730,278.57x = 411,185,676,653.81
  5. Step 5: Solve for x
    x = 411,185,676,653.81/730,278.57
  6. Step 6: Final answer
    x = 563,053.19

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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.