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Finding the Fourth Proportional to 632,499.69, 872,870.13 and 346,019.78

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Solution

The fourth proportional to 632,499.69, 872,870.13 and 346,019.78 is: 477,518.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,499.69 : 872,870.13 = 346,019.78 : x
  2. Step 2: Convert to fraction form
    632,499.69/872,870.13 = 346,019.78/x
  3. Step 3: Cross multiply
    632,499.69x = 872,870.13 × 346,019.78
  4. Step 4: Simplify right side
    632,499.69x = 302,030,330,351.17
  5. Step 5: Solve for x
    x = 302,030,330,351.17/632,499.69
  6. Step 6: Final answer
    x = 477,518.54

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Double scale
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Similar ratio
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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.