Home / 879,319.52-1,213,488.48-497,338.88

Finding the Fourth Proportional to 879,319.52, 1,213,488.48 and 497,338.88

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Solution

The fourth proportional to 879,319.52, 1,213,488.48 and 497,338.88 is: 686,343.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,319.52 : 1,213,488.48 = 497,338.88 : x
  2. Step 2: Convert to fraction form
    879,319.52/1,213,488.48 = 497,338.88/x
  3. Step 3: Cross multiply
    879,319.52x = 1,213,488.48 × 497,338.88
  4. Step 4: Simplify right side
    879,319.52x = 603,515,001,536.10
  5. Step 5: Solve for x
    x = 603,515,001,536.10/879,319.52
  6. Step 6: Final answer
    x = 686,343.23

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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.