Home / 971,038.31-1,340,112.63-535,540.83

Finding the Fourth Proportional to 971,038.31, 1,340,112.63 and 535,540.83

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Solution

The fourth proportional to 971,038.31, 1,340,112.63 and 535,540.83 is: 739,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,038.31 : 1,340,112.63 = 535,540.83 : x
  2. Step 2: Convert to fraction form
    971,038.31/1,340,112.63 = 535,540.83/x
  3. Step 3: Cross multiply
    971,038.31x = 1,340,112.63 × 535,540.83
  4. Step 4: Simplify right side
    971,038.31x = 717,685,030,163.68
  5. Step 5: Solve for x
    x = 717,685,030,163.68/971,038.31
  6. Step 6: Final answer
    x = 739,090.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.