Home / 1,289,410.80-1,934,116.20-402,946.80

Finding the Fourth Proportional to 1,289,410.80, 1,934,116.20 and 402,946.80

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Solution

The fourth proportional to 1,289,410.80, 1,934,116.20 and 402,946.80 is: 604,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,410.80 : 1,934,116.20 = 402,946.80 : x
  2. Step 2: Convert to fraction form
    1,289,410.80/1,934,116.20 = 402,946.80/x
  3. Step 3: Cross multiply
    1,289,410.80x = 1,934,116.20 × 402,946.80
  4. Step 4: Simplify right side
    1,289,410.80x = 779,345,933,618.16
  5. Step 5: Solve for x
    x = 779,345,933,618.16/1,289,410.80
  6. Step 6: Final answer
    x = 604,420.20

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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.