Home / 875,396.75-1,208,140.39-513,124.98

Finding the Fourth Proportional to 875,396.75, 1,208,140.39 and 513,124.98

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Solution

The fourth proportional to 875,396.75, 1,208,140.39 and 513,124.98 is: 708,166.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,396.75 : 1,208,140.39 = 513,124.98 : x
  2. Step 2: Convert to fraction form
    875,396.75/1,208,140.39 = 513,124.98/x
  3. Step 3: Cross multiply
    875,396.75x = 1,208,140.39 × 513,124.98
  4. Step 4: Simplify right side
    875,396.75x = 619,927,010,890.32
  5. Step 5: Solve for x
    x = 619,927,010,890.32/875,396.75
  6. Step 6: Final answer
    x = 708,166.91

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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.