Home / 875,225.40-1,312,881.30-455,321.40

Finding the Fourth Proportional to 875,225.40, 1,312,881.30 and 455,321.40

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Solution

The fourth proportional to 875,225.40, 1,312,881.30 and 455,321.40 is: 683,004.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,225.40 : 1,312,881.30 = 455,321.40 : x
  2. Step 2: Convert to fraction form
    875,225.40/1,312,881.30 = 455,321.40/x
  3. Step 3: Cross multiply
    875,225.40x = 1,312,881.30 × 455,321.40
  4. Step 4: Simplify right side
    875,225.40x = 597,782,951,549.82
  5. Step 5: Solve for x
    x = 597,782,951,549.82/875,225.40
  6. Step 6: Final answer
    x = 683,004.57

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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.