Home / 659,595.48-989,464.50-210,210.72

Finding the Fourth Proportional to 659,595.48, 989,464.50 and 210,210.72

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Solution

The fourth proportional to 659,595.48, 989,464.50 and 210,210.72 is: 315,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,595.48 : 989,464.50 = 210,210.72 : x
  2. Step 2: Convert to fraction form
    659,595.48/989,464.50 = 210,210.72/x
  3. Step 3: Cross multiply
    659,595.48x = 989,464.50 × 210,210.72
  4. Step 4: Simplify right side
    659,595.48x = 207,996,044,959.44
  5. Step 5: Solve for x
    x = 207,996,044,959.44/659,595.48
  6. Step 6: Final answer
    x = 315,338.80

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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.