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Finding the Fourth Proportional to 540,030.95, 745,228.26 and 298,308.32

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Solution

The fourth proportional to 540,030.95, 745,228.26 and 298,308.32 is: 411,657.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,030.95 : 745,228.26 = 298,308.32 : x
  2. Step 2: Convert to fraction form
    540,030.95/745,228.26 = 298,308.32/x
  3. Step 3: Cross multiply
    540,030.95x = 745,228.26 × 298,308.32
  4. Step 4: Simplify right side
    540,030.95x = 222,307,786,530.98
  5. Step 5: Solve for x
    x = 222,307,786,530.98/540,030.95
  6. Step 6: Final answer
    x = 411,657.50

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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.