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Finding the Fourth Proportional to 559,638.62, 772,278.76 and 304,984.34

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Solution

The fourth proportional to 559,638.62, 772,278.76 and 304,984.34 is: 420,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,638.62 : 772,278.76 = 304,984.34 : x
  2. Step 2: Convert to fraction form
    559,638.62/772,278.76 = 304,984.34/x
  3. Step 3: Cross multiply
    559,638.62x = 772,278.76 × 304,984.34
  4. Step 4: Simplify right side
    559,638.62x = 235,532,927,914.62
  5. Step 5: Solve for x
    x = 235,532,927,914.62/559,638.62
  6. Step 6: Final answer
    x = 420,866.11

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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.