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Finding the Fourth Proportional to 540,428.48, 745,794.28 and 295,413.62

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Solution

The fourth proportional to 540,428.48, 745,794.28 and 295,413.62 is: 407,672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,428.48 : 745,794.28 = 295,413.62 : x
  2. Step 2: Convert to fraction form
    540,428.48/745,794.28 = 295,413.62/x
  3. Step 3: Cross multiply
    540,428.48x = 745,794.28 × 295,413.62
  4. Step 4: Simplify right side
    540,428.48x = 220,317,788,030.09
  5. Step 5: Solve for x
    x = 220,317,788,030.09/540,428.48
  6. Step 6: Final answer
    x = 407,672.42

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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.