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Finding the Fourth Proportional to 679,728.24, 938,000.43 and 373,802.04

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Solution

The fourth proportional to 679,728.24, 938,000.43 and 373,802.04 is: 515,833.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,728.24 : 938,000.43 = 373,802.04 : x
  2. Step 2: Convert to fraction form
    679,728.24/938,000.43 = 373,802.04/x
  3. Step 3: Cross multiply
    679,728.24x = 938,000.43 × 373,802.04
  4. Step 4: Simplify right side
    679,728.24x = 350,626,474,254.88
  5. Step 5: Solve for x
    x = 350,626,474,254.88/679,728.24
  6. Step 6: Final answer
    x = 515,833.32

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1.5x scale

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.