Home / 875,679.27-1,208,409.98-513,344.45

Finding the Fourth Proportional to 875,679.27, 1,208,409.98 and 513,344.45

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Solution

The fourth proportional to 875,679.27, 1,208,409.98 and 513,344.45 is: 708,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,679.27 : 1,208,409.98 = 513,344.45 : x
  2. Step 2: Convert to fraction form
    875,679.27/1,208,409.98 = 513,344.45/x
  3. Step 3: Cross multiply
    875,679.27x = 1,208,409.98 × 513,344.45
  4. Step 4: Simplify right side
    875,679.27x = 620,330,557,011.91
  5. Step 5: Solve for x
    x = 620,330,557,011.91/875,679.27
  6. Step 6: Final answer
    x = 708,399.27

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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.