Home / 1,152,253.17-1,590,109.65-642,955.14

Finding the Fourth Proportional to 1,152,253.17, 1,590,109.65 and 642,955.14

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Solution

The fourth proportional to 1,152,253.17, 1,590,109.65 and 642,955.14 is: 887,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,253.17 : 1,590,109.65 = 642,955.14 : x
  2. Step 2: Convert to fraction form
    1,152,253.17/1,590,109.65 = 642,955.14/x
  3. Step 3: Cross multiply
    1,152,253.17x = 1,590,109.65 × 642,955.14
  4. Step 4: Simplify right side
    1,152,253.17x = 1,022,369,172,631.10
  5. Step 5: Solve for x
    x = 1,022,369,172,631.10/1,152,253.17
  6. Step 6: Final answer
    x = 887,278.25

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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.