Home / 707,071.02-975,747.87-389,119.02

Finding the Fourth Proportional to 707,071.02, 975,747.87 and 389,119.02

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Solution

The fourth proportional to 707,071.02, 975,747.87 and 389,119.02 is: 536,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,071.02 : 975,747.87 = 389,119.02 : x
  2. Step 2: Convert to fraction form
    707,071.02/975,747.87 = 389,119.02/x
  3. Step 3: Cross multiply
    707,071.02x = 975,747.87 × 389,119.02
  4. Step 4: Simplify right side
    707,071.02x = 379,682,054,941.49
  5. Step 5: Solve for x
    x = 379,682,054,941.49/707,071.02
  6. Step 6: Final answer
    x = 536,978.67

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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.