Home / 1,925,811.40-2,887,404.90-915,417.40

Finding the Fourth Proportional to 1,925,811.40, 2,887,404.90 and 915,417.40

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Solution

The fourth proportional to 1,925,811.40, 2,887,404.90 and 915,417.40 is: 1,372,502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925,811.40 : 2,887,404.90 = 915,417.40 : x
  2. Step 2: Convert to fraction form
    1,925,811.40/2,887,404.90 = 915,417.40/x
  3. Step 3: Cross multiply
    1,925,811.40x = 2,887,404.90 × 915,417.40
  4. Step 4: Simplify right side
    1,925,811.40x = 2,643,180,686,305.26
  5. Step 5: Solve for x
    x = 2,643,180,686,305.26/1,925,811.40
  6. Step 6: Final answer
    x = 1,372,502.36

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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.