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Finding the Fourth Proportional to 556,775.69, 768,352.49 and 302,126.87

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Solution

The fourth proportional to 556,775.69, 768,352.49 and 302,126.87 is: 416,936.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,775.69 : 768,352.49 = 302,126.87 : x
  2. Step 2: Convert to fraction form
    556,775.69/768,352.49 = 302,126.87/x
  3. Step 3: Cross multiply
    556,775.69x = 768,352.49 × 302,126.87
  4. Step 4: Simplify right side
    556,775.69x = 232,139,927,508.01
  5. Step 5: Solve for x
    x = 232,139,927,508.01/556,775.69
  6. Step 6: Final answer
    x = 416,936.18

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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.