Home / 540,153.09-745,347.74-298,421.24

Finding the Fourth Proportional to 540,153.09, 745,347.74 and 298,421.24

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Solution

The fourth proportional to 540,153.09, 745,347.74 and 298,421.24 is: 411,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,153.09 : 745,347.74 = 298,421.24 : x
  2. Step 2: Convert to fraction form
    540,153.09/745,347.74 = 298,421.24/x
  3. Step 3: Cross multiply
    540,153.09x = 745,347.74 × 298,421.24
  4. Step 4: Simplify right side
    540,153.09x = 222,427,591,583.15
  5. Step 5: Solve for x
    x = 222,427,591,583.15/540,153.09
  6. Step 6: Final answer
    x = 411,786.21

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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.