Home / 865,870.55-1,298,947.98-266,831.81

Finding the Fourth Proportional to 865,870.55, 1,298,947.98 and 266,831.81

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Solution

The fourth proportional to 865,870.55, 1,298,947.98 and 266,831.81 is: 400,291.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,870.55 : 1,298,947.98 = 266,831.81 : x
  2. Step 2: Convert to fraction form
    865,870.55/1,298,947.98 = 266,831.81/x
  3. Step 3: Cross multiply
    865,870.55x = 1,298,947.98 × 266,831.81
  4. Step 4: Simplify right side
    865,870.55x = 346,600,640,599.24
  5. Step 5: Solve for x
    x = 346,600,640,599.24/865,870.55
  6. Step 6: Final answer
    x = 400,291.52

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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.