Home / 864,047.40-1,296,071.10-815,058.60

Finding the Fourth Proportional to 864,047.40, 1,296,071.10 and 815,058.60

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Solution

The fourth proportional to 864,047.40, 1,296,071.10 and 815,058.60 is: 1,222,587.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,047.40 : 1,296,071.10 = 815,058.60 : x
  2. Step 2: Convert to fraction form
    864,047.40/1,296,071.10 = 815,058.60/x
  3. Step 3: Cross multiply
    864,047.40x = 1,296,071.10 × 815,058.60
  4. Step 4: Simplify right side
    864,047.40x = 1,056,373,896,266.46
  5. Step 5: Solve for x
    x = 1,056,373,896,266.46/864,047.40
  6. Step 6: Final answer
    x = 1,222,587.90

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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.