Home / 531,831.60-733,900.64-290,112.21

Finding the Fourth Proportional to 531,831.60, 733,900.64 and 290,112.21

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Solution

The fourth proportional to 531,831.60, 733,900.64 and 290,112.21 is: 400,340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,831.60 : 733,900.64 = 290,112.21 : x
  2. Step 2: Convert to fraction form
    531,831.60/733,900.64 = 290,112.21/x
  3. Step 3: Cross multiply
    531,831.60x = 733,900.64 × 290,112.21
  4. Step 4: Simplify right side
    531,831.60x = 212,913,535,140.25
  5. Step 5: Solve for x
    x = 212,913,535,140.25/531,831.60
  6. Step 6: Final answer
    x = 400,340.14

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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.