Home / 780,856.07-1,077,573.78-436,688.08

Finding the Fourth Proportional to 780,856.07, 1,077,573.78 and 436,688.08

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Solution

The fourth proportional to 780,856.07, 1,077,573.78 and 436,688.08 is: 602,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,856.07 : 1,077,573.78 = 436,688.08 : x
  2. Step 2: Convert to fraction form
    780,856.07/1,077,573.78 = 436,688.08/x
  3. Step 3: Cross multiply
    780,856.07x = 1,077,573.78 × 436,688.08
  4. Step 4: Simplify right side
    780,856.07x = 470,563,622,352.61
  5. Step 5: Solve for x
    x = 470,563,622,352.61/780,856.07
  6. Step 6: Final answer
    x = 602,625.30

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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.