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Finding the Fourth Proportional to 556,933.75, 768,548.00 and 302,279.47

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Solution

The fourth proportional to 556,933.75, 768,548.00 and 302,279.47 is: 417,134.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,933.75 : 768,548.00 = 302,279.47 : x
  2. Step 2: Convert to fraction form
    556,933.75/768,548.00 = 302,279.47/x
  3. Step 3: Cross multiply
    556,933.75x = 768,548.00 × 302,279.47
  4. Step 4: Simplify right side
    556,933.75x = 232,316,280,943.89
  5. Step 5: Solve for x
    x = 232,316,280,943.89/556,933.75
  6. Step 6: Final answer
    x = 417,134.50

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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.