Home / 979,337.69-1,352,347.85-612,443.84

Finding the Fourth Proportional to 979,337.69, 1,352,347.85 and 612,443.84

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Solution

The fourth proportional to 979,337.69, 1,352,347.85 and 612,443.84 is: 845,711.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,337.69 : 1,352,347.85 = 612,443.84 : x
  2. Step 2: Convert to fraction form
    979,337.69/1,352,347.85 = 612,443.84/x
  3. Step 3: Cross multiply
    979,337.69x = 1,352,347.85 × 612,443.84
  4. Step 4: Simplify right side
    979,337.69x = 828,237,105,039.11
  5. Step 5: Solve for x
    x = 828,237,105,039.11/979,337.69
  6. Step 6: Final answer
    x = 845,711.46

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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.