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Finding the Fourth Proportional to 679,610.40, 937,842.36 and 373,686.48

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Solution

The fourth proportional to 679,610.40, 937,842.36 and 373,686.48 is: 515,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,610.40 : 937,842.36 = 373,686.48 : x
  2. Step 2: Convert to fraction form
    679,610.40/937,842.36 = 373,686.48/x
  3. Step 3: Cross multiply
    679,610.40x = 937,842.36 × 373,686.48
  4. Step 4: Simplify right side
    679,610.40x = 350,459,010,303.29
  5. Step 5: Solve for x
    x = 350,459,010,303.29/679,610.40
  6. Step 6: Final answer
    x = 515,676.35

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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.