Home / 583,200.05-804,282.28-399,705.28

Finding the Fourth Proportional to 583,200.05, 804,282.28 and 399,705.28

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Solution

The fourth proportional to 583,200.05, 804,282.28 and 399,705.28 is: 551,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,200.05 : 804,282.28 = 399,705.28 : x
  2. Step 2: Convert to fraction form
    583,200.05/804,282.28 = 399,705.28/x
  3. Step 3: Cross multiply
    583,200.05x = 804,282.28 × 399,705.28
  4. Step 4: Simplify right side
    583,200.05x = 321,475,870,916.47
  5. Step 5: Solve for x
    x = 321,475,870,916.47/583,200.05
  6. Step 6: Final answer
    x = 551,227.45

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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.