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Finding the Fourth Proportional to 501,505.50, 692,077.58 and 286,650.18

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Solution

The fourth proportional to 501,505.50, 692,077.58 and 286,650.18 is: 395,577.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,505.50 : 692,077.58 = 286,650.18 : x
  2. Step 2: Convert to fraction form
    501,505.50/692,077.58 = 286,650.18/x
  3. Step 3: Cross multiply
    501,505.50x = 692,077.58 × 286,650.18
  4. Step 4: Simplify right side
    501,505.50x = 198,384,161,447.71
  5. Step 5: Solve for x
    x = 198,384,161,447.71/501,505.50
  6. Step 6: Final answer
    x = 395,577.24

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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.