Home / 1,065,710.80-1,600,315.80-712,291.60

Finding the Fourth Proportional to 1,065,710.80, 1,600,315.80 and 712,291.60

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Solution

The fourth proportional to 1,065,710.80, 1,600,315.80 and 712,291.60 is: 1,069,606.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,710.80 : 1,600,315.80 = 712,291.60 : x
  2. Step 2: Convert to fraction form
    1,065,710.80/1,600,315.80 = 712,291.60/x
  3. Step 3: Cross multiply
    1,065,710.80x = 1,600,315.80 × 712,291.60
  4. Step 4: Simplify right side
    1,065,710.80x = 1,139,891,501,687.28
  5. Step 5: Solve for x
    x = 1,139,891,501,687.28/1,065,710.80
  6. Step 6: Final answer
    x = 1,069,606.78

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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.