Home / 627,426.81-865,831.55-340,937.37

Finding the Fourth Proportional to 627,426.81, 865,831.55 and 340,937.37

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Solution

The fourth proportional to 627,426.81, 865,831.55 and 340,937.37 is: 470,484.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,426.81 : 865,831.55 = 340,937.37 : x
  2. Step 2: Convert to fraction form
    627,426.81/865,831.55 = 340,937.37/x
  3. Step 3: Cross multiply
    627,426.81x = 865,831.55 × 340,937.37
  4. Step 4: Simplify right side
    627,426.81x = 295,194,329,815.34
  5. Step 5: Solve for x
    x = 295,194,329,815.34/627,426.81
  6. Step 6: Final answer
    x = 470,484.09

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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.