Home / 1,536,689.45-2,120,909.03-916,534.39

Finding the Fourth Proportional to 1,536,689.45, 2,120,909.03 and 916,534.39

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Solution

The fourth proportional to 1,536,689.45, 2,120,909.03 and 916,534.39 is: 1,264,983.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,689.45 : 2,120,909.03 = 916,534.39 : x
  2. Step 2: Convert to fraction form
    1,536,689.45/2,120,909.03 = 916,534.39/x
  3. Step 3: Cross multiply
    1,536,689.45x = 2,120,909.03 × 916,534.39
  4. Step 4: Simplify right side
    1,536,689.45x = 1,943,886,064,056.54
  5. Step 5: Solve for x
    x = 1,943,886,064,056.54/1,536,689.45
  6. Step 6: Final answer
    x = 1,264,983.02

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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.