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Finding the Fourth Proportional to 556,775.72, 768,365.38 and 302,127.10

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Solution

The fourth proportional to 556,775.72, 768,365.38 and 302,127.10 is: 416,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,775.72 : 768,365.38 = 302,127.10 : x
  2. Step 2: Convert to fraction form
    556,775.72/768,365.38 = 302,127.10/x
  3. Step 3: Cross multiply
    556,775.72x = 768,365.38 × 302,127.10
  4. Step 4: Simplify right side
    556,775.72x = 232,144,003,999.80
  5. Step 5: Solve for x
    x = 232,144,003,999.80/556,775.72
  6. Step 6: Final answer
    x = 416,943.48

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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.