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Finding the Fourth Proportional to 501,955.48, 692,696.55 and 287,095.24

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Solution

The fourth proportional to 501,955.48, 692,696.55 and 287,095.24 is: 396,190.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,955.48 : 692,696.55 = 287,095.24 : x
  2. Step 2: Convert to fraction form
    501,955.48/692,696.55 = 287,095.24/x
  3. Step 3: Cross multiply
    501,955.48x = 692,696.55 × 287,095.24
  4. Step 4: Simplify right side
    501,955.48x = 198,869,882,269.42
  5. Step 5: Solve for x
    x = 198,869,882,269.42/501,955.48
  6. Step 6: Final answer
    x = 396,190.28

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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.