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Finding the Fourth Proportional to 710,711.15, 980,844.59 and 404,720.69

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Solution

The fourth proportional to 710,711.15, 980,844.59 and 404,720.69 is: 558,550.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,711.15 : 980,844.59 = 404,720.69 : x
  2. Step 2: Convert to fraction form
    710,711.15/980,844.59 = 404,720.69/x
  3. Step 3: Cross multiply
    710,711.15x = 980,844.59 × 404,720.69
  4. Step 4: Simplify right side
    710,711.15x = 396,968,095,355.15
  5. Step 5: Solve for x
    x = 396,968,095,355.15/710,711.15
  6. Step 6: Final answer
    x = 558,550.54

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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.