Home / 812,763.84-1,122,162.14-507,305.52

Finding the Fourth Proportional to 812,763.84, 1,122,162.14 and 507,305.52

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Solution

The fourth proportional to 812,763.84, 1,122,162.14 and 507,305.52 is: 700,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,763.84 : 1,122,162.14 = 507,305.52 : x
  2. Step 2: Convert to fraction form
    812,763.84/1,122,162.14 = 507,305.52/x
  3. Step 3: Cross multiply
    812,763.84x = 1,122,162.14 × 507,305.52
  4. Step 4: Simplify right side
    812,763.84x = 569,279,047,957.01
  5. Step 5: Solve for x
    x = 569,279,047,957.01/812,763.84
  6. Step 6: Final answer
    x = 700,423.69

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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.