Home / 877,110.40-1,315,665.60-457,206.40

Finding the Fourth Proportional to 877,110.40, 1,315,665.60 and 457,206.40

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Solution

The fourth proportional to 877,110.40, 1,315,665.60 and 457,206.40 is: 685,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,110.40 : 1,315,665.60 = 457,206.40 : x
  2. Step 2: Convert to fraction form
    877,110.40/1,315,665.60 = 457,206.40/x
  3. Step 3: Cross multiply
    877,110.40x = 1,315,665.60 × 457,206.40
  4. Step 4: Simplify right side
    877,110.40x = 601,530,732,579.84
  5. Step 5: Solve for x
    x = 601,530,732,579.84/877,110.40
  6. Step 6: Final answer
    x = 685,809.60

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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.