Home / 723,494.40-1,085,630.40-302,812.80

Finding the Fourth Proportional to 723,494.40, 1,085,630.40 and 302,812.80

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Solution

The fourth proportional to 723,494.40, 1,085,630.40 and 302,812.80 is: 454,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,494.40 : 1,085,630.40 = 302,812.80 : x
  2. Step 2: Convert to fraction form
    723,494.40/1,085,630.40 = 302,812.80/x
  3. Step 3: Cross multiply
    723,494.40x = 1,085,630.40 × 302,812.80
  4. Step 4: Simplify right side
    723,494.40x = 328,742,781,189.12
  5. Step 5: Solve for x
    x = 328,742,781,189.12/723,494.40
  6. Step 6: Final answer
    x = 454,381.93

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1.5x scale

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.