Home / 1,646,904.32-2,272,210.08-921,636.80

Finding the Fourth Proportional to 1,646,904.32, 2,272,210.08 and 921,636.80

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Solution

The fourth proportional to 1,646,904.32, 2,272,210.08 and 921,636.80 is: 1,271,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646,904.32 : 2,272,210.08 = 921,636.80 : x
  2. Step 2: Convert to fraction form
    1,646,904.32/2,272,210.08 = 921,636.80/x
  3. Step 3: Cross multiply
    1,646,904.32x = 2,272,210.08 × 921,636.80
  4. Step 4: Simplify right side
    1,646,904.32x = 2,094,152,427,058.94
  5. Step 5: Solve for x
    x = 2,094,152,427,058.94/1,646,904.32
  6. Step 6: Final answer
    x = 1,271,568.97

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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.