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Finding the Fourth Proportional to 928,477, 1,390,555.48 and 902,936.20

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Solution

The fourth proportional to 928,477, 1,390,555.48 and 902,936.20 is: 1,352,303.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,477 : 1,390,555.48 = 902,936.20 : x
  2. Step 2: Convert to fraction form
    928,477/1,390,555.48 = 902,936.20/x
  3. Step 3: Cross multiply
    928,477x = 1,390,555.48 × 902,936.20
  4. Step 4: Simplify right side
    928,477x = 1,255,582,881,000.38
  5. Step 5: Solve for x
    x = 1,255,582,881,000.38/928,477
  6. Step 6: Final answer
    x = 1,352,303.70

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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.