Home / 771,021.84-1,063,916.19-426,831.78

Finding the Fourth Proportional to 771,021.84, 1,063,916.19 and 426,831.78

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Solution

The fourth proportional to 771,021.84, 1,063,916.19 and 426,831.78 is: 588,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,021.84 : 1,063,916.19 = 426,831.78 : x
  2. Step 2: Convert to fraction form
    771,021.84/1,063,916.19 = 426,831.78/x
  3. Step 3: Cross multiply
    771,021.84x = 1,063,916.19 × 426,831.78
  4. Step 4: Simplify right side
    771,021.84x = 454,113,241,148.52
  5. Step 5: Solve for x
    x = 454,113,241,148.52/771,021.84
  6. Step 6: Final answer
    x = 588,975.85

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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.