Home / 556,320.86-767,821.08-326,878.10

Finding the Fourth Proportional to 556,320.86, 767,821.08 and 326,878.10

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Solution

The fourth proportional to 556,320.86, 767,821.08 and 326,878.10 is: 451,149.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,320.86 : 767,821.08 = 326,878.10 : x
  2. Step 2: Convert to fraction form
    556,320.86/767,821.08 = 326,878.10/x
  3. Step 3: Cross multiply
    556,320.86x = 767,821.08 × 326,878.10
  4. Step 4: Simplify right side
    556,320.86x = 250,983,891,931.24
  5. Step 5: Solve for x
    x = 250,983,891,931.24/556,320.86
  6. Step 6: Final answer
    x = 451,149.53

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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.