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Finding the Fourth Proportional to 704,585.32, 972,315.48 and 428,843.50

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Solution

The fourth proportional to 704,585.32, 972,315.48 and 428,843.50 is: 591,796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,585.32 : 972,315.48 = 428,843.50 : x
  2. Step 2: Convert to fraction form
    704,585.32/972,315.48 = 428,843.50/x
  3. Step 3: Cross multiply
    704,585.32x = 972,315.48 × 428,843.50
  4. Step 4: Simplify right side
    704,585.32x = 416,971,173,547.38
  5. Step 5: Solve for x
    x = 416,971,173,547.38/704,585.32
  6. Step 6: Final answer
    x = 591,796.57

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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.