Home / 913,147.06-1,260,180.06-505,242.26

Finding the Fourth Proportional to 913,147.06, 1,260,180.06 and 505,242.26

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Solution

The fourth proportional to 913,147.06, 1,260,180.06 and 505,242.26 is: 697,254.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,147.06 : 1,260,180.06 = 505,242.26 : x
  2. Step 2: Convert to fraction form
    913,147.06/1,260,180.06 = 505,242.26/x
  3. Step 3: Cross multiply
    913,147.06x = 1,260,180.06 × 505,242.26
  4. Step 4: Simplify right side
    913,147.06x = 636,696,221,521.34
  5. Step 5: Solve for x
    x = 636,696,221,521.34/913,147.06
  6. Step 6: Final answer
    x = 697,254.86

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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.