Home / 753,579.65-1,039,951.72-409,422.40

Finding the Fourth Proportional to 753,579.65, 1,039,951.72 and 409,422.40

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Solution

The fourth proportional to 753,579.65, 1,039,951.72 and 409,422.40 is: 565,009.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,579.65 : 1,039,951.72 = 409,422.40 : x
  2. Step 2: Convert to fraction form
    753,579.65/1,039,951.72 = 409,422.40/x
  3. Step 3: Cross multiply
    753,579.65x = 1,039,951.72 × 409,422.40
  4. Step 4: Simplify right side
    753,579.65x = 425,779,527,574.16
  5. Step 5: Solve for x
    x = 425,779,527,574.16/753,579.65
  6. Step 6: Final answer
    x = 565,009.32

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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.