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Finding the Fourth Proportional to 662,280.84, 913,922.19 and 375,783.84

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Solution

The fourth proportional to 662,280.84, 913,922.19 and 375,783.84 is: 518,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,280.84 : 913,922.19 = 375,783.84 : x
  2. Step 2: Convert to fraction form
    662,280.84/913,922.19 = 375,783.84/x
  3. Step 3: Cross multiply
    662,280.84x = 913,922.19 × 375,783.84
  4. Step 4: Simplify right side
    662,280.84x = 343,437,190,019.41
  5. Step 5: Solve for x
    x = 343,437,190,019.41/662,280.84
  6. Step 6: Final answer
    x = 518,567.30

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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.