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Finding the Fourth Proportional to 525,870.70, 788,806.05 and 494,766.70

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Solution

The fourth proportional to 525,870.70, 788,806.05 and 494,766.70 is: 742,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,870.70 : 788,806.05 = 494,766.70 : x
  2. Step 2: Convert to fraction form
    525,870.70/788,806.05 = 494,766.70/x
  3. Step 3: Cross multiply
    525,870.70x = 788,806.05 × 494,766.70
  4. Step 4: Simplify right side
    525,870.70x = 390,274,966,298.54
  5. Step 5: Solve for x
    x = 390,274,966,298.54/525,870.70
  6. Step 6: Final answer
    x = 742,150.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.