Home / 1,565,964.16-2,160,928.26-921,259.80

Finding the Fourth Proportional to 1,565,964.16, 2,160,928.26 and 921,259.80

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Solution

The fourth proportional to 1,565,964.16, 2,160,928.26 and 921,259.80 is: 1,271,278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,964.16 : 2,160,928.26 = 921,259.80 : x
  2. Step 2: Convert to fraction form
    1,565,964.16/2,160,928.26 = 921,259.80/x
  3. Step 3: Cross multiply
    1,565,964.16x = 2,160,928.26 × 921,259.80
  4. Step 4: Simplify right side
    1,565,964.16x = 1,990,776,336,621.95
  5. Step 5: Solve for x
    x = 1,990,776,336,621.95/1,565,964.16
  6. Step 6: Final answer
    x = 1,271,278.35

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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.