Home / 879,487.47-1,213,751.39-492,337.24

Finding the Fourth Proportional to 879,487.47, 1,213,751.39 and 492,337.24

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Solution

The fourth proportional to 879,487.47, 1,213,751.39 and 492,337.24 is: 679,458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,487.47 : 1,213,751.39 = 492,337.24 : x
  2. Step 2: Convert to fraction form
    879,487.47/1,213,751.39 = 492,337.24/x
  3. Step 3: Cross multiply
    879,487.47x = 1,213,751.39 × 492,337.24
  4. Step 4: Simplify right side
    879,487.47x = 597,575,003,902.70
  5. Step 5: Solve for x
    x = 597,575,003,902.70/879,487.47
  6. Step 6: Final answer
    x = 679,458.23

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Double scale
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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.