Home / 749,370.61-1,034,139.60-409,831.57

Finding the Fourth Proportional to 749,370.61, 1,034,139.60 and 409,831.57

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Solution

The fourth proportional to 749,370.61, 1,034,139.60 and 409,831.57 is: 565,572.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,370.61 : 1,034,139.60 = 409,831.57 : x
  2. Step 2: Convert to fraction form
    749,370.61/1,034,139.60 = 409,831.57/x
  3. Step 3: Cross multiply
    749,370.61x = 1,034,139.60 × 409,831.57
  4. Step 4: Simplify right side
    749,370.61x = 423,823,055,867.17
  5. Step 5: Solve for x
    x = 423,823,055,867.17/749,370.61
  6. Step 6: Final answer
    x = 565,572.03

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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.