Home / 980,518.31-1,353,251.47-550,831.13

Finding the Fourth Proportional to 980,518.31, 1,353,251.47 and 550,831.13

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Solution

The fourth proportional to 980,518.31, 1,353,251.47 and 550,831.13 is: 760,223.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,518.31 : 1,353,251.47 = 550,831.13 : x
  2. Step 2: Convert to fraction form
    980,518.31/1,353,251.47 = 550,831.13/x
  3. Step 3: Cross multiply
    980,518.31x = 1,353,251.47 × 550,831.13
  4. Step 4: Simplify right side
    980,518.31x = 745,413,036,394.26
  5. Step 5: Solve for x
    x = 745,413,036,394.26/980,518.31
  6. Step 6: Final answer
    x = 760,223.47

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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.