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Finding the Fourth Proportional to 632,486.13, 872,830.80 and 346,008.30

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Solution

The fourth proportional to 632,486.13, 872,830.80 and 346,008.30 is: 477,491.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,486.13 : 872,830.80 = 346,008.30 : x
  2. Step 2: Convert to fraction form
    632,486.13/872,830.80 = 346,008.30/x
  3. Step 3: Cross multiply
    632,486.13x = 872,830.80 × 346,008.30
  4. Step 4: Simplify right side
    632,486.13x = 302,006,701,295.64
  5. Step 5: Solve for x
    x = 302,006,701,295.64/632,486.13
  6. Step 6: Final answer
    x = 477,491.42

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1.5x scale

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.