Home / 724,374.57-999,586.84-402,059.30

Finding the Fourth Proportional to 724,374.57, 999,586.84 and 402,059.30

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Solution

The fourth proportional to 724,374.57, 999,586.84 and 402,059.30 is: 554,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,374.57 : 999,586.84 = 402,059.30 : x
  2. Step 2: Convert to fraction form
    724,374.57/999,586.84 = 402,059.30/x
  3. Step 3: Cross multiply
    724,374.57x = 999,586.84 × 402,059.30
  4. Step 4: Simplify right side
    724,374.57x = 401,893,180,495.79
  5. Step 5: Solve for x
    x = 401,893,180,495.79/724,374.57
  6. Step 6: Final answer
    x = 554,814.04

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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.