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Finding the Fourth Proportional to 562,480.77, 776,204.32 and 320,841.57

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Solution

The fourth proportional to 562,480.77, 776,204.32 and 320,841.57 is: 442,750.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,480.77 : 776,204.32 = 320,841.57 : x
  2. Step 2: Convert to fraction form
    562,480.77/776,204.32 = 320,841.57/x
  3. Step 3: Cross multiply
    562,480.77x = 776,204.32 × 320,841.57
  4. Step 4: Simplify right side
    562,480.77x = 249,038,615,379.82
  5. Step 5: Solve for x
    x = 249,038,615,379.82/562,480.77
  6. Step 6: Final answer
    x = 442,750.45

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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.