Home / 724,348.83-1,086,543.80-191,869.91

Finding the Fourth Proportional to 724,348.83, 1,086,543.80 and 191,869.91

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Solution

The fourth proportional to 724,348.83, 1,086,543.80 and 191,869.91 is: 287,810.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,348.83 : 1,086,543.80 = 191,869.91 : x
  2. Step 2: Convert to fraction form
    724,348.83/1,086,543.80 = 191,869.91/x
  3. Step 3: Cross multiply
    724,348.83x = 1,086,543.80 × 191,869.91
  4. Step 4: Simplify right side
    724,348.83x = 208,475,061,117.06
  5. Step 5: Solve for x
    x = 208,475,061,117.06/724,348.83
  6. Step 6: Final answer
    x = 287,810.31

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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.