Home / 922,981.98-1,384,619.34-390,507

Finding the Fourth Proportional to 922,981.98, 1,384,619.34 and 390,507

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Solution

The fourth proportional to 922,981.98, 1,384,619.34 and 390,507 is: 585,822.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,981.98 : 1,384,619.34 = 390,507 : x
  2. Step 2: Convert to fraction form
    922,981.98/1,384,619.34 = 390,507/x
  3. Step 3: Cross multiply
    922,981.98x = 1,384,619.34 × 390,507
  4. Step 4: Simplify right side
    922,981.98x = 540,703,544,605.38
  5. Step 5: Solve for x
    x = 540,703,544,605.38/922,981.98
  6. Step 6: Final answer
    x = 585,822.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.