Home / 875,686.60-1,313,432.70-717,639.40

Finding the Fourth Proportional to 875,686.60, 1,313,432.70 and 717,639.40

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Solution

The fourth proportional to 875,686.60, 1,313,432.70 and 717,639.40 is: 1,076,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,686.60 : 1,313,432.70 = 717,639.40 : x
  2. Step 2: Convert to fraction form
    875,686.60/1,313,432.70 = 717,639.40/x
  3. Step 3: Cross multiply
    875,686.60x = 1,313,432.70 × 717,639.40
  4. Step 4: Simplify right side
    875,686.60x = 942,571,054,768.38
  5. Step 5: Solve for x
    x = 942,571,054,768.38/875,686.60
  6. Step 6: Final answer
    x = 1,076,379.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.