Home / 831,750.90-1,245,783.15-644,154.10

Finding the Fourth Proportional to 831,750.90, 1,245,783.15 and 644,154.10

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Solution

The fourth proportional to 831,750.90, 1,245,783.15 and 644,154.10 is: 964,803.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,750.90 : 1,245,783.15 = 644,154.10 : x
  2. Step 2: Convert to fraction form
    831,750.90/1,245,783.15 = 644,154.10/x
  3. Step 3: Cross multiply
    831,750.90x = 1,245,783.15 × 644,154.10
  4. Step 4: Simplify right side
    831,750.90x = 802,476,323,783.42
  5. Step 5: Solve for x
    x = 802,476,323,783.42/831,750.90
  6. Step 6: Final answer
    x = 964,803.67

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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.