Home / 528,769.42-729,624.81-302,371.18

Finding the Fourth Proportional to 528,769.42, 729,624.81 and 302,371.18

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Solution

The fourth proportional to 528,769.42, 729,624.81 and 302,371.18 is: 417,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,769.42 : 729,624.81 = 302,371.18 : x
  2. Step 2: Convert to fraction form
    528,769.42/729,624.81 = 302,371.18/x
  3. Step 3: Cross multiply
    528,769.42x = 729,624.81 × 302,371.18
  4. Step 4: Simplify right side
    528,769.42x = 220,617,514,066.81
  5. Step 5: Solve for x
    x = 220,617,514,066.81/528,769.42
  6. Step 6: Final answer
    x = 417,228.20

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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.