Home / 1,306,022.61-1,959,337.66-407,415.90

Finding the Fourth Proportional to 1,306,022.61, 1,959,337.66 and 407,415.90

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Solution

The fourth proportional to 1,306,022.61, 1,959,337.66 and 407,415.90 is: 611,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,022.61 : 1,959,337.66 = 407,415.90 : x
  2. Step 2: Convert to fraction form
    1,306,022.61/1,959,337.66 = 407,415.90/x
  3. Step 3: Cross multiply
    1,306,022.61x = 1,959,337.66 × 407,415.90
  4. Step 4: Simplify right side
    1,306,022.61x = 798,265,316,152.79
  5. Step 5: Solve for x
    x = 798,265,316,152.79/1,306,022.61
  6. Step 6: Final answer
    x = 611,218.60

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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.