Home / 1,565,920.95-2,160,934.14-921,382.89

Finding the Fourth Proportional to 1,565,920.95, 2,160,934.14 and 921,382.89

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Solution

The fourth proportional to 1,565,920.95, 2,160,934.14 and 921,382.89 is: 1,271,486.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,920.95 : 2,160,934.14 = 921,382.89 : x
  2. Step 2: Convert to fraction form
    1,565,920.95/2,160,934.14 = 921,382.89/x
  3. Step 3: Cross multiply
    1,565,920.95x = 2,160,934.14 × 921,382.89
  4. Step 4: Simplify right side
    1,565,920.95x = 1,991,047,743,012.86
  5. Step 5: Solve for x
    x = 1,991,047,743,012.86/1,565,920.95
  6. Step 6: Final answer
    x = 1,271,486.75

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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.