Home / 927,072.47-1,390,825.68-287,342.77

Finding the Fourth Proportional to 927,072.47, 1,390,825.68 and 287,342.77

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Solution

The fourth proportional to 927,072.47, 1,390,825.68 and 287,342.77 is: 431,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,072.47 : 1,390,825.68 = 287,342.77 : x
  2. Step 2: Convert to fraction form
    927,072.47/1,390,825.68 = 287,342.77/x
  3. Step 3: Cross multiply
    927,072.47x = 1,390,825.68 × 287,342.77
  4. Step 4: Simplify right side
    927,072.47x = 399,643,703,478.33
  5. Step 5: Solve for x
    x = 399,643,703,478.33/927,072.47
  6. Step 6: Final answer
    x = 431,081.41

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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.