Home / 673,588.50-1,010,812.95-318,623.46

Finding the Fourth Proportional to 673,588.50, 1,010,812.95 and 318,623.46

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Solution

The fourth proportional to 673,588.50, 1,010,812.95 and 318,623.46 is: 478,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,588.50 : 1,010,812.95 = 318,623.46 : x
  2. Step 2: Convert to fraction form
    673,588.50/1,010,812.95 = 318,623.46/x
  3. Step 3: Cross multiply
    673,588.50x = 1,010,812.95 × 318,623.46
  4. Step 4: Simplify right side
    673,588.50x = 322,068,719,541.81
  5. Step 5: Solve for x
    x = 322,068,719,541.81/673,588.50
  6. Step 6: Final answer
    x = 478,138.68

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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.