Home / 841,270.52-1,260,856.02-420,666.68

Finding the Fourth Proportional to 841,270.52, 1,260,856.02 and 420,666.68

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Solution

The fourth proportional to 841,270.52, 1,260,856.02 and 420,666.68 is: 630,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,270.52 : 1,260,856.02 = 420,666.68 : x
  2. Step 2: Convert to fraction form
    841,270.52/1,260,856.02 = 420,666.68/x
  3. Step 3: Cross multiply
    841,270.52x = 1,260,856.02 × 420,666.68
  4. Step 4: Simplify right side
    841,270.52x = 530,400,115,891.41
  5. Step 5: Solve for x
    x = 530,400,115,891.41/841,270.52
  6. Step 6: Final answer
    x = 630,475.10

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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.