Home / 875,821.68-1,208,717.64-549,186.72

Finding the Fourth Proportional to 875,821.68, 1,208,717.64 and 549,186.72

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Solution

The fourth proportional to 875,821.68, 1,208,717.64 and 549,186.72 is: 757,930.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,821.68 : 1,208,717.64 = 549,186.72 : x
  2. Step 2: Convert to fraction form
    875,821.68/1,208,717.64 = 549,186.72/x
  3. Step 3: Cross multiply
    875,821.68x = 1,208,717.64 × 549,186.72
  4. Step 4: Simplify right side
    875,821.68x = 663,811,676,117.74
  5. Step 5: Solve for x
    x = 663,811,676,117.74/875,821.68
  6. Step 6: Final answer
    x = 757,930.17

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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.