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Finding the Fourth Proportional to 662,392.40, 993,718.20 and 283,312.40

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Solution

The fourth proportional to 662,392.40, 993,718.20 and 283,312.40 is: 425,024.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,392.40 : 993,718.20 = 283,312.40 : x
  2. Step 2: Convert to fraction form
    662,392.40/993,718.20 = 283,312.40/x
  3. Step 3: Cross multiply
    662,392.40x = 993,718.20 × 283,312.40
  4. Step 4: Simplify right side
    662,392.40x = 281,532,688,165.68
  5. Step 5: Solve for x
    x = 281,532,688,165.68/662,392.40
  6. Step 6: Final answer
    x = 425,024.03

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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.