Home / 1,258,720.56-1,887,818.40-460,378.08

Finding the Fourth Proportional to 1,258,720.56, 1,887,818.40 and 460,378.08

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Solution

The fourth proportional to 1,258,720.56, 1,887,818.40 and 460,378.08 is: 690,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,720.56 : 1,887,818.40 = 460,378.08 : x
  2. Step 2: Convert to fraction form
    1,258,720.56/1,887,818.40 = 460,378.08/x
  3. Step 3: Cross multiply
    1,258,720.56x = 1,887,818.40 × 460,378.08
  4. Step 4: Simplify right side
    1,258,720.56x = 869,110,210,380.67
  5. Step 5: Solve for x
    x = 869,110,210,380.67/1,258,720.56
  6. Step 6: Final answer
    x = 690,471.13

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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.