Home / 743,279.74-1,025,869.79-484,707.76

Finding the Fourth Proportional to 743,279.74, 1,025,869.79 and 484,707.76

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Solution

The fourth proportional to 743,279.74, 1,025,869.79 and 484,707.76 is: 668,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,279.74 : 1,025,869.79 = 484,707.76 : x
  2. Step 2: Convert to fraction form
    743,279.74/1,025,869.79 = 484,707.76/x
  3. Step 3: Cross multiply
    743,279.74x = 1,025,869.79 × 484,707.76
  4. Step 4: Simplify right side
    743,279.74x = 497,247,047,962.57
  5. Step 5: Solve for x
    x = 497,247,047,962.57/743,279.74
  6. Step 6: Final answer
    x = 668,990.45

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1.5x scale

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.