Home / 915,690.57-1,263,732.89-533,709.15

Finding the Fourth Proportional to 915,690.57, 1,263,732.89 and 533,709.15

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Solution

The fourth proportional to 915,690.57, 1,263,732.89 and 533,709.15 is: 736,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,690.57 : 1,263,732.89 = 533,709.15 : x
  2. Step 2: Convert to fraction form
    915,690.57/1,263,732.89 = 533,709.15/x
  3. Step 3: Cross multiply
    915,690.57x = 1,263,732.89 × 533,709.15
  4. Step 4: Simplify right side
    915,690.57x = 674,465,803,880.40
  5. Step 5: Solve for x
    x = 674,465,803,880.40/915,690.57
  6. Step 6: Final answer
    x = 736,565.20

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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.