Home / 679,631.68-937,915.80-373,731.28

Finding the Fourth Proportional to 679,631.68, 937,915.80 and 373,731.28

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Solution

The fourth proportional to 679,631.68, 937,915.80 and 373,731.28 is: 515,762.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,631.68 : 937,915.80 = 373,731.28 : x
  2. Step 2: Convert to fraction form
    679,631.68/937,915.80 = 373,731.28/x
  3. Step 3: Cross multiply
    679,631.68x = 937,915.80 × 373,731.28
  4. Step 4: Simplify right side
    679,631.68x = 350,528,472,466.22
  5. Step 5: Solve for x
    x = 350,528,472,466.22/679,631.68
  6. Step 6: Final answer
    x = 515,762.41

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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.