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Finding the Fourth Proportional to 884,259.80, 1,326,486.90 and 323,415.80

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Solution

The fourth proportional to 884,259.80, 1,326,486.90 and 323,415.80 is: 485,159.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,259.80 : 1,326,486.90 = 323,415.80 : x
  2. Step 2: Convert to fraction form
    884,259.80/1,326,486.90 = 323,415.80/x
  3. Step 3: Cross multiply
    884,259.80x = 1,326,486.90 × 323,415.80
  4. Step 4: Simplify right side
    884,259.80x = 429,006,821,953.02
  5. Step 5: Solve for x
    x = 429,006,821,953.02/884,259.80
  6. Step 6: Final answer
    x = 485,159.25

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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.