Home / 915,154.28-1,262,910.72-501,690.32

Finding the Fourth Proportional to 915,154.28, 1,262,910.72 and 501,690.32

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Solution

The fourth proportional to 915,154.28, 1,262,910.72 and 501,690.32 is: 692,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,154.28 : 1,262,910.72 = 501,690.32 : x
  2. Step 2: Convert to fraction form
    915,154.28/1,262,910.72 = 501,690.32/x
  3. Step 3: Cross multiply
    915,154.28x = 1,262,910.72 × 501,690.32
  4. Step 4: Simplify right side
    915,154.28x = 633,590,083,248.23
  5. Step 5: Solve for x
    x = 633,590,083,248.23/915,154.28
  6. Step 6: Final answer
    x = 692,331.44

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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.