Home / 877,178.16-1,210,377.03-489,945.87

Finding the Fourth Proportional to 877,178.16, 1,210,377.03 and 489,945.87

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Solution

The fourth proportional to 877,178.16, 1,210,377.03 and 489,945.87 is: 676,053.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,178.16 : 1,210,377.03 = 489,945.87 : x
  2. Step 2: Convert to fraction form
    877,178.16/1,210,377.03 = 489,945.87/x
  3. Step 3: Cross multiply
    877,178.16x = 1,210,377.03 × 489,945.87
  4. Step 4: Simplify right side
    877,178.16x = 593,019,226,991.37
  5. Step 5: Solve for x
    x = 593,019,226,991.37/877,178.16
  6. Step 6: Final answer
    x = 676,053.34

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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.