Home / 1,031,316.48-1,422,264.96-687,345.60

Finding the Fourth Proportional to 1,031,316.48, 1,422,264.96 and 687,345.60

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Solution

The fourth proportional to 1,031,316.48, 1,422,264.96 and 687,345.60 is: 947,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,316.48 : 1,422,264.96 = 687,345.60 : x
  2. Step 2: Convert to fraction form
    1,031,316.48/1,422,264.96 = 687,345.60/x
  3. Step 3: Cross multiply
    1,031,316.48x = 1,422,264.96 × 687,345.60
  4. Step 4: Simplify right side
    1,031,316.48x = 977,587,562,290.18
  5. Step 5: Solve for x
    x = 977,587,562,290.18/1,031,316.48
  6. Step 6: Final answer
    x = 947,902.59

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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.