Home / 1,152,631.19-1,590,566.33-643,366.37

Finding the Fourth Proportional to 1,152,631.19, 1,590,566.33 and 643,366.37

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Solution

The fourth proportional to 1,152,631.19, 1,590,566.33 and 643,366.37 is: 887,809.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,631.19 : 1,590,566.33 = 643,366.37 : x
  2. Step 2: Convert to fraction form
    1,152,631.19/1,590,566.33 = 643,366.37/x
  3. Step 3: Cross multiply
    1,152,631.19x = 1,590,566.33 × 643,366.37
  4. Step 4: Simplify right side
    1,152,631.19x = 1,023,316,878,023.49
  5. Step 5: Solve for x
    x = 1,023,316,878,023.49/1,152,631.19
  6. Step 6: Final answer
    x = 887,809.47

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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.