Home / 1,000,153.75-1,380,220.77-570,455.63

Finding the Fourth Proportional to 1,000,153.75, 1,380,220.77 and 570,455.63

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Solution

The fourth proportional to 1,000,153.75, 1,380,220.77 and 570,455.63 is: 787,233.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,153.75 : 1,380,220.77 = 570,455.63 : x
  2. Step 2: Convert to fraction form
    1,000,153.75/1,380,220.77 = 570,455.63/x
  3. Step 3: Cross multiply
    1,000,153.75x = 1,380,220.77 × 570,455.63
  4. Step 4: Simplify right side
    1,000,153.75x = 787,354,714,479.20
  5. Step 5: Solve for x
    x = 787,354,714,479.20/1,000,153.75
  6. Step 6: Final answer
    x = 787,233.68

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Double scale
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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.