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Finding the Fourth Proportional to 540,103.29, 745,357.59 and 298,401.45

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Solution

The fourth proportional to 540,103.29, 745,357.59 and 298,401.45 is: 411,802.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,103.29 : 745,357.59 = 298,401.45 : x
  2. Step 2: Convert to fraction form
    540,103.29/745,357.59 = 298,401.45/x
  3. Step 3: Cross multiply
    540,103.29x = 745,357.59 × 298,401.45
  4. Step 4: Simplify right side
    540,103.29x = 222,415,785,624.51
  5. Step 5: Solve for x
    x = 222,415,785,624.51/540,103.29
  6. Step 6: Final answer
    x = 411,802.32

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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.