Home / 987,279.40-1,480,976.50-277,362.79

Finding the Fourth Proportional to 987,279.40, 1,480,976.50 and 277,362.79

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Solution

The fourth proportional to 987,279.40, 1,480,976.50 and 277,362.79 is: 416,060.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,279.40 : 1,480,976.50 = 277,362.79 : x
  2. Step 2: Convert to fraction form
    987,279.40/1,480,976.50 = 277,362.79/x
  3. Step 3: Cross multiply
    987,279.40x = 1,480,976.50 × 277,362.79
  4. Step 4: Simplify right side
    987,279.40x = 410,767,779,199.22
  5. Step 5: Solve for x
    x = 410,767,779,199.22/987,279.40
  6. Step 6: Final answer
    x = 416,060.32

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1.5x scale

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.