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Finding the Fourth Proportional to 524,897.10, 787,540.05 and 209,580.30

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Solution

The fourth proportional to 524,897.10, 787,540.05 and 209,580.30 is: 314,448.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,897.10 : 787,540.05 = 209,580.30 : x
  2. Step 2: Convert to fraction form
    524,897.10/787,540.05 = 209,580.30/x
  3. Step 3: Cross multiply
    524,897.10x = 787,540.05 × 209,580.30
  4. Step 4: Simplify right side
    524,897.10x = 165,052,879,941.02
  5. Step 5: Solve for x
    x = 165,052,879,941.02/524,897.10
  6. Step 6: Final answer
    x = 314,448.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.