Home / 708,485.72-977,673.33-402,519.65

Finding the Fourth Proportional to 708,485.72, 977,673.33 and 402,519.65

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Solution

The fourth proportional to 708,485.72, 977,673.33 and 402,519.65 is: 555,456.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,485.72 : 977,673.33 = 402,519.65 : x
  2. Step 2: Convert to fraction form
    708,485.72/977,673.33 = 402,519.65/x
  3. Step 3: Cross multiply
    708,485.72x = 977,673.33 × 402,519.65
  4. Step 4: Simplify right side
    708,485.72x = 393,532,721,717.57
  5. Step 5: Solve for x
    x = 393,532,721,717.57/708,485.72
  6. Step 6: Final answer
    x = 555,456.11

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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.