Home / 859,041.61-1,287,993.66-409,831.81

Finding the Fourth Proportional to 859,041.61, 1,287,993.66 and 409,831.81

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Solution

The fourth proportional to 859,041.61, 1,287,993.66 and 409,831.81 is: 614,476.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,041.61 : 1,287,993.66 = 409,831.81 : x
  2. Step 2: Convert to fraction form
    859,041.61/1,287,993.66 = 409,831.81/x
  3. Step 3: Cross multiply
    859,041.61x = 1,287,993.66 × 409,831.81
  4. Step 4: Simplify right side
    859,041.61x = 527,860,772,946.33
  5. Step 5: Solve for x
    x = 527,860,772,946.33/859,041.61
  6. Step 6: Final answer
    x = 614,476.37

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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.