Home / 839,628.28-1,258,820.34-507,126.52

Finding the Fourth Proportional to 839,628.28, 1,258,820.34 and 507,126.52

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Solution

The fourth proportional to 839,628.28, 1,258,820.34 and 507,126.52 is: 760,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,628.28 : 1,258,820.34 = 507,126.52 : x
  2. Step 2: Convert to fraction form
    839,628.28/1,258,820.34 = 507,126.52/x
  3. Step 3: Cross multiply
    839,628.28x = 1,258,820.34 × 507,126.52
  4. Step 4: Simplify right side
    839,628.28x = 638,381,178,329.42
  5. Step 5: Solve for x
    x = 638,381,178,329.42/839,628.28
  6. Step 6: Final answer
    x = 760,314.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.