Home / 905,804.38-1,249,996.03-497,897.49

Finding the Fourth Proportional to 905,804.38, 1,249,996.03 and 497,897.49

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Solution

The fourth proportional to 905,804.38, 1,249,996.03 and 497,897.49 is: 687,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,804.38 : 1,249,996.03 = 497,897.49 : x
  2. Step 2: Convert to fraction form
    905,804.38/1,249,996.03 = 497,897.49/x
  3. Step 3: Cross multiply
    905,804.38x = 1,249,996.03 × 497,897.49
  4. Step 4: Simplify right side
    905,804.38x = 622,369,892,090.38
  5. Step 5: Solve for x
    x = 622,369,892,090.38/905,804.38
  6. Step 6: Final answer
    x = 687,090.84

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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.