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Finding the Fourth Proportional to 556,148.82, 767,491.41 and 326,715.77

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Solution

The fourth proportional to 556,148.82, 767,491.41 and 326,715.77 is: 450,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,148.82 : 767,491.41 = 326,715.77 : x
  2. Step 2: Convert to fraction form
    556,148.82/767,491.41 = 326,715.77/x
  3. Step 3: Cross multiply
    556,148.82x = 767,491.41 × 326,715.77
  4. Step 4: Simplify right side
    556,148.82x = 250,751,543,149.08
  5. Step 5: Solve for x
    x = 250,751,543,149.08/556,148.82
  6. Step 6: Final answer
    x = 450,871.30

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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.