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Finding the Fourth Proportional to 878,875.04, 1,212,880.22 and 496,879.04

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Solution

The fourth proportional to 878,875.04, 1,212,880.22 and 496,879.04 is: 685,711.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,875.04 : 1,212,880.22 = 496,879.04 : x
  2. Step 2: Convert to fraction form
    878,875.04/1,212,880.22 = 496,879.04/x
  3. Step 3: Cross multiply
    878,875.04x = 1,212,880.22 × 496,879.04
  4. Step 4: Simplify right side
    878,875.04x = 602,654,750,799.79
  5. Step 5: Solve for x
    x = 602,654,750,799.79/878,875.04
  6. Step 6: Final answer
    x = 685,711.54

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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.