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Finding the Fourth Proportional to 704,569.32, 972,293.40 and 428,827.50

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Solution

The fourth proportional to 704,569.32, 972,293.40 and 428,827.50 is: 591,774.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,569.32 : 972,293.40 = 428,827.50 : x
  2. Step 2: Convert to fraction form
    704,569.32/972,293.40 = 428,827.50/x
  3. Step 3: Cross multiply
    704,569.32x = 972,293.40 × 428,827.50
  4. Step 4: Simplify right side
    704,569.32x = 416,946,147,988.50
  5. Step 5: Solve for x
    x = 416,946,147,988.50/704,569.32
  6. Step 6: Final answer
    x = 591,774.49

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1.5x scale

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.