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Finding the Fourth Proportional to 662,745, 993,510.06 and 258,210.12

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Solution

The fourth proportional to 662,745, 993,510.06 and 258,210.12 is: 387,078.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,745 : 993,510.06 = 258,210.12 : x
  2. Step 2: Convert to fraction form
    662,745/993,510.06 = 258,210.12/x
  3. Step 3: Cross multiply
    662,745x = 993,510.06 × 258,210.12
  4. Step 4: Simplify right side
    662,745x = 256,534,351,813.81
  5. Step 5: Solve for x
    x = 256,534,351,813.81/662,745
  6. Step 6: Final answer
    x = 387,078.52

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1.5x scale

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.