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Finding the Fourth Proportional to 579,735.60, 869,603.40 and 558,740.40

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Solution

The fourth proportional to 579,735.60, 869,603.40 and 558,740.40 is: 838,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,735.60 : 869,603.40 = 558,740.40 : x
  2. Step 2: Convert to fraction form
    579,735.60/869,603.40 = 558,740.40/x
  3. Step 3: Cross multiply
    579,735.60x = 869,603.40 × 558,740.40
  4. Step 4: Simplify right side
    579,735.60x = 485,882,551,557.36
  5. Step 5: Solve for x
    x = 485,882,551,557.36/579,735.60
  6. Step 6: Final answer
    x = 838,110.60

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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.