Home / 915,700.32-1,263,746.34-533,718.90

Finding the Fourth Proportional to 915,700.32, 1,263,746.34 and 533,718.90

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Solution

The fourth proportional to 915,700.32, 1,263,746.34 and 533,718.90 is: 736,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,700.32 : 1,263,746.34 = 533,718.90 : x
  2. Step 2: Convert to fraction form
    915,700.32/1,263,746.34 = 533,718.90/x
  3. Step 3: Cross multiply
    915,700.32x = 1,263,746.34 × 533,718.90
  4. Step 4: Simplify right side
    915,700.32x = 674,485,306,463.83
  5. Step 5: Solve for x
    x = 674,485,306,463.83/915,700.32
  6. Step 6: Final answer
    x = 736,578.65

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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.