Home / 1,565,677.63-2,160,598.53-921,139.32

Finding the Fourth Proportional to 1,565,677.63, 2,160,598.53 and 921,139.32

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Solution

The fourth proportional to 1,565,677.63, 2,160,598.53 and 921,139.32 is: 1,271,150.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,677.63 : 2,160,598.53 = 921,139.32 : x
  2. Step 2: Convert to fraction form
    1,565,677.63/2,160,598.53 = 921,139.32/x
  3. Step 3: Cross multiply
    1,565,677.63x = 2,160,598.53 × 921,139.32
  4. Step 4: Simplify right side
    1,565,677.63x = 1,990,212,260,717.20
  5. Step 5: Solve for x
    x = 1,990,212,260,717.20/1,565,677.63
  6. Step 6: Final answer
    x = 1,271,150.73

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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.