Home / 767,831.29-1,151,254.80-318,862.06

Finding the Fourth Proportional to 767,831.29, 1,151,254.80 and 318,862.06

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Solution

The fourth proportional to 767,831.29, 1,151,254.80 and 318,862.06 is: 478,088.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,831.29 : 1,151,254.80 = 318,862.06 : x
  2. Step 2: Convert to fraction form
    767,831.29/1,151,254.80 = 318,862.06/x
  3. Step 3: Cross multiply
    767,831.29x = 1,151,254.80 × 318,862.06
  4. Step 4: Simplify right side
    767,831.29x = 367,091,477,112.89
  5. Step 5: Solve for x
    x = 367,091,477,112.89/767,831.29
  6. Step 6: Final answer
    x = 478,088.72

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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.