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Finding the Fourth Proportional to 556,025.28, 767,315.70 and 301,376.40

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Solution

The fourth proportional to 556,025.28, 767,315.70 and 301,376.40 is: 415,899.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,025.28 : 767,315.70 = 301,376.40 : x
  2. Step 2: Convert to fraction form
    556,025.28/767,315.70 = 301,376.40/x
  3. Step 3: Cross multiply
    556,025.28x = 767,315.70 × 301,376.40
  4. Step 4: Simplify right side
    556,025.28x = 231,250,843,329.48
  5. Step 5: Solve for x
    x = 231,250,843,329.48/556,025.28
  6. Step 6: Final answer
    x = 415,899.87

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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.