Home / 679,968.40-1,020,738.30-365,040.40

Finding the Fourth Proportional to 679,968.40, 1,020,738.30 and 365,040.40

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Solution

The fourth proportional to 679,968.40, 1,020,738.30 and 365,040.40 is: 547,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,968.40 : 1,020,738.30 = 365,040.40 : x
  2. Step 2: Convert to fraction form
    679,968.40/1,020,738.30 = 365,040.40/x
  3. Step 3: Cross multiply
    679,968.40x = 1,020,738.30 × 365,040.40
  4. Step 4: Simplify right side
    679,968.40x = 372,610,717,327.32
  5. Step 5: Solve for x
    x = 372,610,717,327.32/679,968.40
  6. Step 6: Final answer
    x = 547,982.40

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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.