Home / 2,688,117.24-4,031,538.88-768,969.28

Finding the Fourth Proportional to 2,688,117.24, 4,031,538.88 and 768,969.28

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Solution

The fourth proportional to 2,688,117.24, 4,031,538.88 and 768,969.28 is: 1,153,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,117.24 : 4,031,538.88 = 768,969.28 : x
  2. Step 2: Convert to fraction form
    2,688,117.24/4,031,538.88 = 768,969.28/x
  3. Step 3: Cross multiply
    2,688,117.24x = 4,031,538.88 × 768,969.28
  4. Step 4: Simplify right side
    2,688,117.24x = 3,100,129,549,845.61
  5. Step 5: Solve for x
    x = 3,100,129,549,845.61/2,688,117.24
  6. Step 6: Final answer
    x = 1,153,271.70

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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.