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Finding the Fourth Proportional to 566,488.50, 780,264.94 and 435,415.50

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Solution

The fourth proportional to 566,488.50, 780,264.94 and 435,415.50 is: 599,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,488.50 : 780,264.94 = 435,415.50 : x
  2. Step 2: Convert to fraction form
    566,488.50/780,264.94 = 435,415.50/x
  3. Step 3: Cross multiply
    566,488.50x = 780,264.94 × 435,415.50
  4. Step 4: Simplify right side
    566,488.50x = 339,739,448,982.57
  5. Step 5: Solve for x
    x = 339,739,448,982.57/566,488.50
  6. Step 6: Final answer
    x = 599,728.77

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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.