Home / 744,830.91-1,117,445.63-212,398.47

Finding the Fourth Proportional to 744,830.91, 1,117,445.63 and 212,398.47

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Solution

The fourth proportional to 744,830.91, 1,117,445.63 and 212,398.47 is: 318,654.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,830.91 : 1,117,445.63 = 212,398.47 : x
  2. Step 2: Convert to fraction form
    744,830.91/1,117,445.63 = 212,398.47/x
  3. Step 3: Cross multiply
    744,830.91x = 1,117,445.63 × 212,398.47
  4. Step 4: Simplify right side
    744,830.91x = 237,343,741,058.19
  5. Step 5: Solve for x
    x = 237,343,741,058.19/744,830.91
  6. Step 6: Final answer
    x = 318,654.53

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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.