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Finding the Fourth Proportional to 874,710.70, 1,207,095.51 and 492,860.50

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Solution

The fourth proportional to 874,710.70, 1,207,095.51 and 492,860.50 is: 680,144.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,710.70 : 1,207,095.51 = 492,860.50 : x
  2. Step 2: Convert to fraction form
    874,710.70/1,207,095.51 = 492,860.50/x
  3. Step 3: Cross multiply
    874,710.70x = 1,207,095.51 × 492,860.50
  4. Step 4: Simplify right side
    874,710.70x = 594,929,695,436.84
  5. Step 5: Solve for x
    x = 594,929,695,436.84/874,710.70
  6. Step 6: Final answer
    x = 680,144.53

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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.