Home / 1,561,378.86-2,154,421.53-873,064.35

Finding the Fourth Proportional to 1,561,378.86, 2,154,421.53 and 873,064.35

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Solution

The fourth proportional to 1,561,378.86, 2,154,421.53 and 873,064.35 is: 1,204,671.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,378.86 : 2,154,421.53 = 873,064.35 : x
  2. Step 2: Convert to fraction form
    1,561,378.86/2,154,421.53 = 873,064.35/x
  3. Step 3: Cross multiply
    1,561,378.86x = 2,154,421.53 × 873,064.35
  4. Step 4: Simplify right side
    1,561,378.86x = 1,880,948,632,715.46
  5. Step 5: Solve for x
    x = 1,880,948,632,715.46/1,561,378.86
  6. Step 6: Final answer
    x = 1,204,671.51

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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.