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Finding the Fourth Proportional to 869,499.36, 1,304,307.36 and 238,360.32

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Solution

The fourth proportional to 869,499.36, 1,304,307.36 and 238,360.32 is: 357,556.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,499.36 : 1,304,307.36 = 238,360.32 : x
  2. Step 2: Convert to fraction form
    869,499.36/1,304,307.36 = 238,360.32/x
  3. Step 3: Cross multiply
    869,499.36x = 1,304,307.36 × 238,360.32
  4. Step 4: Simplify right side
    869,499.36x = 310,895,119,707.96
  5. Step 5: Solve for x
    x = 310,895,119,707.96/869,499.36
  6. Step 6: Final answer
    x = 357,556.47

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Double scale
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1.5x scale

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.