Home / 1,276,643.52-1,915,013.88-477,840.96

Finding the Fourth Proportional to 1,276,643.52, 1,915,013.88 and 477,840.96

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Solution

The fourth proportional to 1,276,643.52, 1,915,013.88 and 477,840.96 is: 716,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,643.52 : 1,915,013.88 = 477,840.96 : x
  2. Step 2: Convert to fraction form
    1,276,643.52/1,915,013.88 = 477,840.96/x
  3. Step 3: Cross multiply
    1,276,643.52x = 1,915,013.88 × 477,840.96
  4. Step 4: Simplify right side
    1,276,643.52x = 915,072,070,832.53
  5. Step 5: Solve for x
    x = 915,072,070,832.53/1,276,643.52
  6. Step 6: Final answer
    x = 716,779.63

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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.