Home / 790,609.39-1,090,595.55-500,130.97

Finding the Fourth Proportional to 790,609.39, 1,090,595.55 and 500,130.97

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Solution

The fourth proportional to 790,609.39, 1,090,595.55 and 500,130.97 is: 689,898.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,609.39 : 1,090,595.55 = 500,130.97 : x
  2. Step 2: Convert to fraction form
    790,609.39/1,090,595.55 = 500,130.97/x
  3. Step 3: Cross multiply
    790,609.39x = 1,090,595.55 × 500,130.97
  4. Step 4: Simplify right side
    790,609.39x = 545,440,610,299.18
  5. Step 5: Solve for x
    x = 545,440,610,299.18/790,609.39
  6. Step 6: Final answer
    x = 689,898.98

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Double scale
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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.