Home / 724,275.21-999,547.53-418,364.49

Finding the Fourth Proportional to 724,275.21, 999,547.53 and 418,364.49

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Solution

The fourth proportional to 724,275.21, 999,547.53 and 418,364.49 is: 577,370.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,275.21 : 999,547.53 = 418,364.49 : x
  2. Step 2: Convert to fraction form
    724,275.21/999,547.53 = 418,364.49/x
  3. Step 3: Cross multiply
    724,275.21x = 999,547.53 × 418,364.49
  4. Step 4: Simplify right side
    724,275.21x = 418,175,192,619.21
  5. Step 5: Solve for x
    x = 418,175,192,619.21/724,275.21
  6. Step 6: Final answer
    x = 577,370.57

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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.