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Finding the Fourth Proportional to 612,430.40, 845,201.22 and 367,424.33

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Solution

The fourth proportional to 612,430.40, 845,201.22 and 367,424.33 is: 507,073.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,430.40 : 845,201.22 = 367,424.33 : x
  2. Step 2: Convert to fraction form
    612,430.40/845,201.22 = 367,424.33/x
  3. Step 3: Cross multiply
    612,430.40x = 845,201.22 × 367,424.33
  4. Step 4: Simplify right side
    612,430.40x = 310,547,491,973.68
  5. Step 5: Solve for x
    x = 310,547,491,973.68/612,430.40
  6. Step 6: Final answer
    x = 507,073.93

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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.