Home / 1,065,708.80-1,600,312.80-712,289.60

Finding the Fourth Proportional to 1,065,708.80, 1,600,312.80 and 712,289.60

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Solution

The fourth proportional to 1,065,708.80, 1,600,312.80 and 712,289.60 is: 1,069,603.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,708.80 : 1,600,312.80 = 712,289.60 : x
  2. Step 2: Convert to fraction form
    1,065,708.80/1,600,312.80 = 712,289.60/x
  3. Step 3: Cross multiply
    1,065,708.80x = 1,600,312.80 × 712,289.60
  4. Step 4: Simplify right side
    1,065,708.80x = 1,139,886,164,186.88
  5. Step 5: Solve for x
    x = 1,139,886,164,186.88/1,065,708.80
  6. Step 6: Final answer
    x = 1,069,603.78

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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.