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Finding the Fourth Proportional to 558,497.60, 770,702.34 and 310,124.15

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Solution

The fourth proportional to 558,497.60, 770,702.34 and 310,124.15 is: 427,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,497.60 : 770,702.34 = 310,124.15 : x
  2. Step 2: Convert to fraction form
    558,497.60/770,702.34 = 310,124.15/x
  3. Step 3: Cross multiply
    558,497.60x = 770,702.34 × 310,124.15
  4. Step 4: Simplify right side
    558,497.60x = 239,013,408,095.51
  5. Step 5: Solve for x
    x = 239,013,408,095.51/558,497.60
  6. Step 6: Final answer
    x = 427,957.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.