Home / 980,621.20-1,470,931.80-349,307.20

Finding the Fourth Proportional to 980,621.20, 1,470,931.80 and 349,307.20

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Solution

The fourth proportional to 980,621.20, 1,470,931.80 and 349,307.20 is: 523,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,621.20 : 1,470,931.80 = 349,307.20 : x
  2. Step 2: Convert to fraction form
    980,621.20/1,470,931.80 = 349,307.20/x
  3. Step 3: Cross multiply
    980,621.20x = 1,470,931.80 × 349,307.20
  4. Step 4: Simplify right side
    980,621.20x = 513,807,068,448.96
  5. Step 5: Solve for x
    x = 513,807,068,448.96/980,621.20
  6. Step 6: Final answer
    x = 523,960.80

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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.