Home / 652,811.10-979,216.65-372,356.70

Finding the Fourth Proportional to 652,811.10, 979,216.65 and 372,356.70

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Solution

The fourth proportional to 652,811.10, 979,216.65 and 372,356.70 is: 558,535.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,811.10 : 979,216.65 = 372,356.70 : x
  2. Step 2: Convert to fraction form
    652,811.10/979,216.65 = 372,356.70/x
  3. Step 3: Cross multiply
    652,811.10x = 979,216.65 × 372,356.70
  4. Step 4: Simplify right side
    652,811.10x = 364,617,880,379.06
  5. Step 5: Solve for x
    x = 364,617,880,379.06/652,811.10
  6. Step 6: Final answer
    x = 558,535.05

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Double scale
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Similar ratio
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1.5x scale

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.