Home / 572,989.95-862,814.23-424,283.67

Finding the Fourth Proportional to 572,989.95, 862,814.23 and 424,283.67

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Solution

The fourth proportional to 572,989.95, 862,814.23 and 424,283.67 is: 638,890.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,989.95 : 862,814.23 = 424,283.67 : x
  2. Step 2: Convert to fraction form
    572,989.95/862,814.23 = 424,283.67/x
  3. Step 3: Cross multiply
    572,989.95x = 862,814.23 × 424,283.67
  4. Step 4: Simplify right side
    572,989.95x = 366,077,986,971.92
  5. Step 5: Solve for x
    x = 366,077,986,971.92/572,989.95
  6. Step 6: Final answer
    x = 638,890.76

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.