Home / 1,407,349.20-2,111,621.52-697,390.80

Finding the Fourth Proportional to 1,407,349.20, 2,111,621.52 and 697,390.80

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Solution

The fourth proportional to 1,407,349.20, 2,111,621.52 and 697,390.80 is: 1,046,382.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,349.20 : 2,111,621.52 = 697,390.80 : x
  2. Step 2: Convert to fraction form
    1,407,349.20/2,111,621.52 = 697,390.80/x
  3. Step 3: Cross multiply
    1,407,349.20x = 2,111,621.52 × 697,390.80
  4. Step 4: Simplify right side
    1,407,349.20x = 1,472,625,421,130.02
  5. Step 5: Solve for x
    x = 1,472,625,421,130.02/1,407,349.20
  6. Step 6: Final answer
    x = 1,046,382.39

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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.