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Finding the Fourth Proportional to 608,840.40, 913,260.60 and 605,341.20

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Solution

The fourth proportional to 608,840.40, 913,260.60 and 605,341.20 is: 908,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,840.40 : 913,260.60 = 605,341.20 : x
  2. Step 2: Convert to fraction form
    608,840.40/913,260.60 = 605,341.20/x
  3. Step 3: Cross multiply
    608,840.40x = 913,260.60 × 605,341.20
  4. Step 4: Simplify right side
    608,840.40x = 552,834,267,516.72
  5. Step 5: Solve for x
    x = 552,834,267,516.72/608,840.40
  6. Step 6: Final answer
    x = 908,011.80

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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.