Home / 877,200.80-1,316,108.40-378,922.40

Finding the Fourth Proportional to 877,200.80, 1,316,108.40 and 378,922.40

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Solution

The fourth proportional to 877,200.80, 1,316,108.40 and 378,922.40 is: 568,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,200.80 : 1,316,108.40 = 378,922.40 : x
  2. Step 2: Convert to fraction form
    877,200.80/1,316,108.40 = 378,922.40/x
  3. Step 3: Cross multiply
    877,200.80x = 1,316,108.40 × 378,922.40
  4. Step 4: Simplify right side
    877,200.80x = 498,702,953,588.16
  5. Step 5: Solve for x
    x = 498,702,953,588.16/877,200.80
  6. Step 6: Final answer
    x = 568,516.30

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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.