Home / 578,076.20-865,802.10-297,265.40

Finding the Fourth Proportional to 578,076.20, 865,802.10 and 297,265.40

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Solution

The fourth proportional to 578,076.20, 865,802.10 and 297,265.40 is: 445,223.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,076.20 : 865,802.10 = 297,265.40 : x
  2. Step 2: Convert to fraction form
    578,076.20/865,802.10 = 297,265.40/x
  3. Step 3: Cross multiply
    578,076.20x = 865,802.10 × 297,265.40
  4. Step 4: Simplify right side
    578,076.20x = 257,373,007,577.34
  5. Step 5: Solve for x
    x = 257,373,007,577.34/578,076.20
  6. Step 6: Final answer
    x = 445,223.32

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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.