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Finding the Fourth Proportional to 562,701.70, 776,602.27 and 320,928.85

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Solution

The fourth proportional to 562,701.70, 776,602.27 and 320,928.85 is: 442,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,701.70 : 776,602.27 = 320,928.85 : x
  2. Step 2: Convert to fraction form
    562,701.70/776,602.27 = 320,928.85/x
  3. Step 3: Cross multiply
    562,701.70x = 776,602.27 × 320,928.85
  4. Step 4: Simplify right side
    562,701.70x = 249,234,070,674.66
  5. Step 5: Solve for x
    x = 249,234,070,674.66/562,701.70
  6. Step 6: Final answer
    x = 442,923.97

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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.