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Finding the Fourth Proportional to 637,289.40, 879,459.12 and 350,808

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Solution

The fourth proportional to 637,289.40, 879,459.12 and 350,808 is: 484,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,289.40 : 879,459.12 = 350,808 : x
  2. Step 2: Convert to fraction form
    637,289.40/879,459.12 = 350,808/x
  3. Step 3: Cross multiply
    637,289.40x = 879,459.12 × 350,808
  4. Step 4: Simplify right side
    637,289.40x = 308,521,294,968.96
  5. Step 5: Solve for x
    x = 308,521,294,968.96/637,289.40
  6. Step 6: Final answer
    x = 484,114.90

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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.