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Finding the Fourth Proportional to 556,283.76, 767,798.64 and 326,868

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Solution

The fourth proportional to 556,283.76, 767,798.64 and 326,868 is: 451,152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,283.76 : 767,798.64 = 326,868 : x
  2. Step 2: Convert to fraction form
    556,283.76/767,798.64 = 326,868/x
  3. Step 3: Cross multiply
    556,283.76x = 767,798.64 × 326,868
  4. Step 4: Simplify right side
    556,283.76x = 250,968,805,859.52
  5. Step 5: Solve for x
    x = 250,968,805,859.52/556,283.76
  6. Step 6: Final answer
    x = 451,152.49

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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.