Home / 1,138,421.40-1,707,113.70-507,010.20

Finding the Fourth Proportional to 1,138,421.40, 1,707,113.70 and 507,010.20

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Solution

The fourth proportional to 1,138,421.40, 1,707,113.70 and 507,010.20 is: 760,284.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,421.40 : 1,707,113.70 = 507,010.20 : x
  2. Step 2: Convert to fraction form
    1,138,421.40/1,707,113.70 = 507,010.20/x
  3. Step 3: Cross multiply
    1,138,421.40x = 1,707,113.70 × 507,010.20
  4. Step 4: Simplify right side
    1,138,421.40x = 865,524,058,459.74
  5. Step 5: Solve for x
    x = 865,524,058,459.74/1,138,421.40
  6. Step 6: Final answer
    x = 760,284.42

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Double scale
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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.