Home / 1,565,665.68-2,160,582.10-921,127.39

Finding the Fourth Proportional to 1,565,665.68, 2,160,582.10 and 921,127.39

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Solution

The fourth proportional to 1,565,665.68, 2,160,582.10 and 921,127.39 is: 1,271,134.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,665.68 : 2,160,582.10 = 921,127.39 : x
  2. Step 2: Convert to fraction form
    1,565,665.68/2,160,582.10 = 921,127.39/x
  3. Step 3: Cross multiply
    1,565,665.68x = 2,160,582.10 × 921,127.39
  4. Step 4: Simplify right side
    1,565,665.68x = 1,990,171,360,284.06
  5. Step 5: Solve for x
    x = 1,990,171,360,284.06/1,565,665.68
  6. Step 6: Final answer
    x = 1,271,134.31

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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.