Home / 772,106.70-1,157,620.05-456,401.10

Finding the Fourth Proportional to 772,106.70, 1,157,620.05 and 456,401.10

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Solution

The fourth proportional to 772,106.70, 1,157,620.05 and 456,401.10 is: 684,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,106.70 : 1,157,620.05 = 456,401.10 : x
  2. Step 2: Convert to fraction form
    772,106.70/1,157,620.05 = 456,401.10/x
  3. Step 3: Cross multiply
    772,106.70x = 1,157,620.05 × 456,401.10
  4. Step 4: Simplify right side
    772,106.70x = 528,339,064,202.06
  5. Step 5: Solve for x
    x = 528,339,064,202.06/772,106.70
  6. Step 6: Final answer
    x = 684,282.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.