Home / 1,390,335.90-2,082,004.65-914,444.70

Finding the Fourth Proportional to 1,390,335.90, 2,082,004.65 and 914,444.70

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Solution

The fourth proportional to 1,390,335.90, 2,082,004.65 and 914,444.70 is: 1,369,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,335.90 : 2,082,004.65 = 914,444.70 : x
  2. Step 2: Convert to fraction form
    1,390,335.90/2,082,004.65 = 914,444.70/x
  3. Step 3: Cross multiply
    1,390,335.90x = 2,082,004.65 × 914,444.70
  4. Step 4: Simplify right side
    1,390,335.90x = 1,903,878,117,567.85
  5. Step 5: Solve for x
    x = 1,903,878,117,567.85/1,390,335.90
  6. Step 6: Final answer
    x = 1,369,365.57

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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.