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Finding the Fourth Proportional to 611,831.69, 917,765.63 and 292,017.26

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Solution

The fourth proportional to 611,831.69, 917,765.63 and 292,017.26 is: 438,034.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,831.69 : 917,765.63 = 292,017.26 : x
  2. Step 2: Convert to fraction form
    611,831.69/917,765.63 = 292,017.26/x
  3. Step 3: Cross multiply
    611,831.69x = 917,765.63 × 292,017.26
  4. Step 4: Simplify right side
    611,831.69x = 268,003,398,545.86
  5. Step 5: Solve for x
    x = 268,003,398,545.86/611,831.69
  6. Step 6: Final answer
    x = 438,034.52

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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.