Home / 1,306,023.61-1,959,339.16-407,416.90

Finding the Fourth Proportional to 1,306,023.61, 1,959,339.16 and 407,416.90

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Solution

The fourth proportional to 1,306,023.61, 1,959,339.16 and 407,416.90 is: 611,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,023.61 : 1,959,339.16 = 407,416.90 : x
  2. Step 2: Convert to fraction form
    1,306,023.61/1,959,339.16 = 407,416.90/x
  3. Step 3: Cross multiply
    1,306,023.61x = 1,959,339.16 × 407,416.90
  4. Step 4: Simplify right side
    1,306,023.61x = 798,267,886,615.80
  5. Step 5: Solve for x
    x = 798,267,886,615.80/1,306,023.61
  6. Step 6: Final answer
    x = 611,220.10

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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.