Home / 915,108.51-1,262,817.12-507,248.49

Finding the Fourth Proportional to 915,108.51, 1,262,817.12 and 507,248.49

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Solution

The fourth proportional to 915,108.51, 1,262,817.12 and 507,248.49 is: 699,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,108.51 : 1,262,817.12 = 507,248.49 : x
  2. Step 2: Convert to fraction form
    915,108.51/1,262,817.12 = 507,248.49/x
  3. Step 3: Cross multiply
    915,108.51x = 1,262,817.12 × 507,248.49
  4. Step 4: Simplify right side
    915,108.51x = 640,562,077,266.15
  5. Step 5: Solve for x
    x = 640,562,077,266.15/915,108.51
  6. Step 6: Final answer
    x = 699,984.83

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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.