Home / 877,004.72-1,210,236.32-489,840.56

Finding the Fourth Proportional to 877,004.72, 1,210,236.32 and 489,840.56

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Solution

The fourth proportional to 877,004.72, 1,210,236.32 and 489,840.56 is: 675,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,004.72 : 1,210,236.32 = 489,840.56 : x
  2. Step 2: Convert to fraction form
    877,004.72/1,210,236.32 = 489,840.56/x
  3. Step 3: Cross multiply
    877,004.72x = 1,210,236.32 × 489,840.56
  4. Step 4: Simplify right side
    877,004.72x = 592,822,836,721.14
  5. Step 5: Solve for x
    x = 592,822,836,721.14/877,004.72
  6. Step 6: Final answer
    x = 675,963.11

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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.