Home / 772,140.70-1,157,671.05-456,435.10

Finding the Fourth Proportional to 772,140.70, 1,157,671.05 and 456,435.10

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Solution

The fourth proportional to 772,140.70, 1,157,671.05 and 456,435.10 is: 684,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,140.70 : 1,157,671.05 = 456,435.10 : x
  2. Step 2: Convert to fraction form
    772,140.70/1,157,671.05 = 456,435.10/x
  3. Step 3: Cross multiply
    772,140.70x = 1,157,671.05 × 456,435.10
  4. Step 4: Simplify right side
    772,140.70x = 528,401,701,473.86
  5. Step 5: Solve for x
    x = 528,401,701,473.86/772,140.70
  6. Step 6: Final answer
    x = 684,333.44

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Double scale
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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.