Home / 1,687,088.34-2,328,179.40-912,716.64

Finding the Fourth Proportional to 1,687,088.34, 2,328,179.40 and 912,716.64

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Solution

The fourth proportional to 1,687,088.34, 2,328,179.40 and 912,716.64 is: 1,259,547.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,088.34 : 2,328,179.40 = 912,716.64 : x
  2. Step 2: Convert to fraction form
    1,687,088.34/2,328,179.40 = 912,716.64/x
  3. Step 3: Cross multiply
    1,687,088.34x = 2,328,179.40 × 912,716.64
  4. Step 4: Simplify right side
    1,687,088.34x = 2,124,968,079,285.22
  5. Step 5: Solve for x
    x = 2,124,968,079,285.22/1,687,088.34
  6. Step 6: Final answer
    x = 1,259,547.61

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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.