Home / 821,014.63-1,132,989.46-458,444.66

Finding the Fourth Proportional to 821,014.63, 1,132,989.46 and 458,444.66

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Solution

The fourth proportional to 821,014.63, 1,132,989.46 and 458,444.66 is: 632,647.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,014.63 : 1,132,989.46 = 458,444.66 : x
  2. Step 2: Convert to fraction form
    821,014.63/1,132,989.46 = 458,444.66/x
  3. Step 3: Cross multiply
    821,014.63x = 1,132,989.46 × 458,444.66
  4. Step 4: Simplify right side
    821,014.63x = 519,412,960,962.23
  5. Step 5: Solve for x
    x = 519,412,960,962.23/821,014.63
  6. Step 6: Final answer
    x = 632,647.63

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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.