Home / 500,637.30-690,897.09-274,282.98

Finding the Fourth Proportional to 500,637.30, 690,897.09 and 274,282.98

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Solution

The fourth proportional to 500,637.30, 690,897.09 and 274,282.98 is: 378,520.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,637.30 : 690,897.09 = 274,282.98 : x
  2. Step 2: Convert to fraction form
    500,637.30/690,897.09 = 274,282.98/x
  3. Step 3: Cross multiply
    500,637.30x = 690,897.09 × 274,282.98
  4. Step 4: Simplify right side
    500,637.30x = 189,501,312,718.53
  5. Step 5: Solve for x
    x = 189,501,312,718.53/500,637.30
  6. Step 6: Final answer
    x = 378,520.16

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1.5x scale

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.