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Finding the Fourth Proportional to 562,557.51, 776,343.03 and 320,862.57

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Solution

The fourth proportional to 562,557.51, 776,343.03 and 320,862.57 is: 442,798.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,557.51 : 776,343.03 = 320,862.57 : x
  2. Step 2: Convert to fraction form
    562,557.51/776,343.03 = 320,862.57/x
  3. Step 3: Cross multiply
    562,557.51x = 776,343.03 × 320,862.57
  4. Step 4: Simplify right side
    562,557.51x = 249,099,419,807.39
  5. Step 5: Solve for x
    x = 249,099,419,807.39/562,557.51
  6. Step 6: Final answer
    x = 442,798.14

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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.