Home / 724,699.96-1,000,178.18-438,222.12

Finding the Fourth Proportional to 724,699.96, 1,000,178.18 and 438,222.12

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Solution

The fourth proportional to 724,699.96, 1,000,178.18 and 438,222.12 is: 604,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,699.96 : 1,000,178.18 = 438,222.12 : x
  2. Step 2: Convert to fraction form
    724,699.96/1,000,178.18 = 438,222.12/x
  3. Step 3: Cross multiply
    724,699.96x = 1,000,178.18 × 438,222.12
  4. Step 4: Simplify right side
    724,699.96x = 438,300,202,417.34
  5. Step 5: Solve for x
    x = 438,300,202,417.34/724,699.96
  6. Step 6: Final answer
    x = 604,802.30

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1.5x scale

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.