Home / 1,557,678.60-2,337,830.10-611,728.20

Finding the Fourth Proportional to 1,557,678.60, 2,337,830.10 and 611,728.20

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Solution

The fourth proportional to 1,557,678.60, 2,337,830.10 and 611,728.20 is: 918,107.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,678.60 : 2,337,830.10 = 611,728.20 : x
  2. Step 2: Convert to fraction form
    1,557,678.60/2,337,830.10 = 611,728.20/x
  3. Step 3: Cross multiply
    1,557,678.60x = 2,337,830.10 × 611,728.20
  4. Step 4: Simplify right side
    1,557,678.60x = 1,430,116,598,978.82
  5. Step 5: Solve for x
    x = 1,430,116,598,978.82/1,557,678.60
  6. Step 6: Final answer
    x = 918,107.62

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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.