Home / 1,211,290.80-1,816,280.10-500,515.80

Finding the Fourth Proportional to 1,211,290.80, 1,816,280.10 and 500,515.80

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Solution

The fourth proportional to 1,211,290.80, 1,816,280.10 and 500,515.80 is: 750,502.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,290.80 : 1,816,280.10 = 500,515.80 : x
  2. Step 2: Convert to fraction form
    1,211,290.80/1,816,280.10 = 500,515.80/x
  3. Step 3: Cross multiply
    1,211,290.80x = 1,816,280.10 × 500,515.80
  4. Step 4: Simplify right side
    1,211,290.80x = 909,076,887,275.58
  5. Step 5: Solve for x
    x = 909,076,887,275.58/1,211,290.80
  6. Step 6: Final answer
    x = 750,502.59

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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.