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Finding the Fourth Proportional to 868,102.70, 1,301,959.65 and 570,670.70

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Solution

The fourth proportional to 868,102.70, 1,301,959.65 and 570,670.70 is: 855,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,102.70 : 1,301,959.65 = 570,670.70 : x
  2. Step 2: Convert to fraction form
    868,102.70/1,301,959.65 = 570,670.70/x
  3. Step 3: Cross multiply
    868,102.70x = 1,301,959.65 × 570,670.70
  4. Step 4: Simplify right side
    868,102.70x = 742,990,224,837.26
  5. Step 5: Solve for x
    x = 742,990,224,837.26/868,102.70
  6. Step 6: Final answer
    x = 855,878.26

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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.