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Finding the Fourth Proportional to 562,580.60, 776,354.91 and 307,928.75

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Solution

The fourth proportional to 562,580.60, 776,354.91 and 307,928.75 is: 424,938.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,580.60 : 776,354.91 = 307,928.75 : x
  2. Step 2: Convert to fraction form
    562,580.60/776,354.91 = 307,928.75/x
  3. Step 3: Cross multiply
    562,580.60x = 776,354.91 × 307,928.75
  4. Step 4: Simplify right side
    562,580.60x = 239,061,996,992.66
  5. Step 5: Solve for x
    x = 239,061,996,992.66/562,580.60
  6. Step 6: Final answer
    x = 424,938.22

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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.