Home / 1,328,831.20-1,993,246.80-382,146.40

Finding the Fourth Proportional to 1,328,831.20, 1,993,246.80 and 382,146.40

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Solution

The fourth proportional to 1,328,831.20, 1,993,246.80 and 382,146.40 is: 573,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,831.20 : 1,993,246.80 = 382,146.40 : x
  2. Step 2: Convert to fraction form
    1,328,831.20/1,993,246.80 = 382,146.40/x
  3. Step 3: Cross multiply
    1,328,831.20x = 1,993,246.80 × 382,146.40
  4. Step 4: Simplify right side
    1,328,831.20x = 761,712,088,931.52
  5. Step 5: Solve for x
    x = 761,712,088,931.52/1,328,831.20
  6. Step 6: Final answer
    x = 573,219.60

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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.