Home / 915,154.16-1,262,910.54-501,690.20

Finding the Fourth Proportional to 915,154.16, 1,262,910.54 and 501,690.20

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Solution

The fourth proportional to 915,154.16, 1,262,910.54 and 501,690.20 is: 692,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,154.16 : 1,262,910.54 = 501,690.20 : x
  2. Step 2: Convert to fraction form
    915,154.16/1,262,910.54 = 501,690.20/x
  3. Step 3: Cross multiply
    915,154.16x = 1,262,910.54 × 501,690.20
  4. Step 4: Simplify right side
    915,154.16x = 633,589,835,080.16
  5. Step 5: Solve for x
    x = 633,589,835,080.16/915,154.16
  6. Step 6: Final answer
    x = 692,331.27

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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.