Home / 745,928.19-1,119,223.07-390,857.81

Finding the Fourth Proportional to 745,928.19, 1,119,223.07 and 390,857.81

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Solution

The fourth proportional to 745,928.19, 1,119,223.07 and 390,857.81 is: 586,460.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,928.19 : 1,119,223.07 = 390,857.81 : x
  2. Step 2: Convert to fraction form
    745,928.19/1,119,223.07 = 390,857.81/x
  3. Step 3: Cross multiply
    745,928.19x = 1,119,223.07 × 390,857.81
  4. Step 4: Simplify right side
    745,928.19x = 437,457,071,956.99
  5. Step 5: Solve for x
    x = 437,457,071,956.99/745,928.19
  6. Step 6: Final answer
    x = 586,460.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.