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Finding the Fourth Proportional to 562,703.70, 776,605.02 and 320,930.84

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Solution

The fourth proportional to 562,703.70, 776,605.02 and 320,930.84 is: 442,926.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,703.70 : 776,605.02 = 320,930.84 : x
  2. Step 2: Convert to fraction form
    562,703.70/776,605.02 = 320,930.84/x
  3. Step 3: Cross multiply
    562,703.70x = 776,605.02 × 320,930.84
  4. Step 4: Simplify right side
    562,703.70x = 249,236,501,416.82
  5. Step 5: Solve for x
    x = 249,236,501,416.82/562,703.70
  6. Step 6: Final answer
    x = 442,926.72

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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.