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Finding the Fourth Proportional to 704,970.18, 972,860.09 and 382,680.50

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Solution

The fourth proportional to 704,970.18, 972,860.09 and 382,680.50 is: 528,099.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,970.18 : 972,860.09 = 382,680.50 : x
  2. Step 2: Convert to fraction form
    704,970.18/972,860.09 = 382,680.50/x
  3. Step 3: Cross multiply
    704,970.18x = 972,860.09 × 382,680.50
  4. Step 4: Simplify right side
    704,970.18x = 372,294,585,671.25
  5. Step 5: Solve for x
    x = 372,294,585,671.25/704,970.18
  6. Step 6: Final answer
    x = 528,099.76

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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.