Home / 858,490.31-1,287,703.69-346,376.93

Finding the Fourth Proportional to 858,490.31, 1,287,703.69 and 346,376.93

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Solution

The fourth proportional to 858,490.31, 1,287,703.69 and 346,376.93 is: 519,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,490.31 : 1,287,703.69 = 346,376.93 : x
  2. Step 2: Convert to fraction form
    858,490.31/1,287,703.69 = 346,376.93/x
  3. Step 3: Cross multiply
    858,490.31x = 1,287,703.69 × 346,376.93
  4. Step 4: Simplify right side
    858,490.31x = 446,030,843,587.41
  5. Step 5: Solve for x
    x = 446,030,843,587.41/858,490.31
  6. Step 6: Final answer
    x = 519,552.56

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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.