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Finding the Fourth Proportional to 556,190.83, 767,582.67 and 314,475.76

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Solution

The fourth proportional to 556,190.83, 767,582.67 and 314,475.76 is: 433,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,190.83 : 767,582.67 = 314,475.76 : x
  2. Step 2: Convert to fraction form
    556,190.83/767,582.67 = 314,475.76/x
  3. Step 3: Cross multiply
    556,190.83x = 767,582.67 × 314,475.76
  4. Step 4: Simplify right side
    556,190.83x = 241,386,143,511.08
  5. Step 5: Solve for x
    x = 241,386,143,511.08/556,190.83
  6. Step 6: Final answer
    x = 433,998.78

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1.5x scale

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.