Home / 1,152,631.56-1,590,566.85-643,366.74

Finding the Fourth Proportional to 1,152,631.56, 1,590,566.85 and 643,366.74

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Solution

The fourth proportional to 1,152,631.56, 1,590,566.85 and 643,366.74 is: 887,809.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,631.56 : 1,590,566.85 = 643,366.74 : x
  2. Step 2: Convert to fraction form
    1,152,631.56/1,590,566.85 = 643,366.74/x
  3. Step 3: Cross multiply
    1,152,631.56x = 1,590,566.85 × 643,366.74
  4. Step 4: Simplify right side
    1,152,631.56x = 1,023,317,809,036.57
  5. Step 5: Solve for x
    x = 1,023,317,809,036.57/1,152,631.56
  6. Step 6: Final answer
    x = 887,809.99

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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.