Home / 562,572.40-776,310.96-320,865.28

Finding the Fourth Proportional to 562,572.40, 776,310.96 and 320,865.28

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Solution

The fourth proportional to 562,572.40, 776,310.96 and 320,865.28 is: 442,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,572.40 : 776,310.96 = 320,865.28 : x
  2. Step 2: Convert to fraction form
    562,572.40/776,310.96 = 320,865.28/x
  3. Step 3: Cross multiply
    562,572.40x = 776,310.96 × 320,865.28
  4. Step 4: Simplify right side
    562,572.40x = 249,091,233,547.47
  5. Step 5: Solve for x
    x = 249,091,233,547.47/562,572.40
  6. Step 6: Final answer
    x = 442,771.87

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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.