Home / 905,901.13-1,358,816.21-306,862.28

Finding the Fourth Proportional to 905,901.13, 1,358,816.21 and 306,862.28

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Solution

The fourth proportional to 905,901.13, 1,358,816.21 and 306,862.28 is: 460,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,901.13 : 1,358,816.21 = 306,862.28 : x
  2. Step 2: Convert to fraction form
    905,901.13/1,358,816.21 = 306,862.28/x
  3. Step 3: Cross multiply
    905,901.13x = 1,358,816.21 × 306,862.28
  4. Step 4: Simplify right side
    905,901.13x = 416,969,440,301.56
  5. Step 5: Solve for x
    x = 416,969,440,301.56/905,901.13
  6. Step 6: Final answer
    x = 460,281.40

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1.5x scale

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.