Home / 745,063.04-1,117,635.84-212,543.12

Finding the Fourth Proportional to 745,063.04, 1,117,635.84 and 212,543.12

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Solution

The fourth proportional to 745,063.04, 1,117,635.84 and 212,543.12 is: 318,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,063.04 : 1,117,635.84 = 212,543.12 : x
  2. Step 2: Convert to fraction form
    745,063.04/1,117,635.84 = 212,543.12/x
  3. Step 3: Cross multiply
    745,063.04x = 1,117,635.84 × 212,543.12
  4. Step 4: Simplify right side
    745,063.04x = 237,545,808,457.42
  5. Step 5: Solve for x
    x = 237,545,808,457.42/745,063.04
  6. Step 6: Final answer
    x = 318,826.46

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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.