Home / 579,030.07-799,061.57-320,923.68

Finding the Fourth Proportional to 579,030.07, 799,061.57 and 320,923.68

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Solution

The fourth proportional to 579,030.07, 799,061.57 and 320,923.68 is: 442,874.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,030.07 : 799,061.57 = 320,923.68 : x
  2. Step 2: Convert to fraction form
    579,030.07/799,061.57 = 320,923.68/x
  3. Step 3: Cross multiply
    579,030.07x = 799,061.57 × 320,923.68
  4. Step 4: Simplify right side
    579,030.07x = 256,437,779,590.98
  5. Step 5: Solve for x
    x = 256,437,779,590.98/579,030.07
  6. Step 6: Final answer
    x = 442,874.72

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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.