Home / 724,281.29-999,631.88-418,302.67

Finding the Fourth Proportional to 724,281.29, 999,631.88 and 418,302.67

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Solution

The fourth proportional to 724,281.29, 999,631.88 and 418,302.67 is: 577,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,281.29 : 999,631.88 = 418,302.67 : x
  2. Step 2: Convert to fraction form
    724,281.29/999,631.88 = 418,302.67/x
  3. Step 3: Cross multiply
    724,281.29x = 999,631.88 × 418,302.67
  4. Step 4: Simplify right side
    724,281.29x = 418,148,684,421.12
  5. Step 5: Solve for x
    x = 418,148,684,421.12/724,281.29
  6. Step 6: Final answer
    x = 577,329.13

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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.