Home / 1,290,166.20-1,934,666.10-579,828.60

Finding the Fourth Proportional to 1,290,166.20, 1,934,666.10 and 579,828.60

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Solution

The fourth proportional to 1,290,166.20, 1,934,666.10 and 579,828.60 is: 869,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,166.20 : 1,934,666.10 = 579,828.60 : x
  2. Step 2: Convert to fraction form
    1,290,166.20/1,934,666.10 = 579,828.60/x
  3. Step 3: Cross multiply
    1,290,166.20x = 1,934,666.10 × 579,828.60
  4. Step 4: Simplify right side
    1,290,166.20x = 1,121,774,736,230.46
  5. Step 5: Solve for x
    x = 1,121,774,736,230.46/1,290,166.20
  6. Step 6: Final answer
    x = 869,480.80

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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.