Home / 947,071.80-1,306,987.20-517,359.06

Finding the Fourth Proportional to 947,071.80, 1,306,987.20 and 517,359.06

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Solution

The fourth proportional to 947,071.80, 1,306,987.20 and 517,359.06 is: 713,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,071.80 : 1,306,987.20 = 517,359.06 : x
  2. Step 2: Convert to fraction form
    947,071.80/1,306,987.20 = 517,359.06/x
  3. Step 3: Cross multiply
    947,071.80x = 1,306,987.20 × 517,359.06
  4. Step 4: Simplify right side
    947,071.80x = 676,181,669,224.03
  5. Step 5: Solve for x
    x = 676,181,669,224.03/947,071.80
  6. Step 6: Final answer
    x = 713,970.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.