Home / 909,878.35-1,255,588.31-496,390.51

Finding the Fourth Proportional to 909,878.35, 1,255,588.31 and 496,390.51

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Solution

The fourth proportional to 909,878.35, 1,255,588.31 and 496,390.51 is: 684,995.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,878.35 : 1,255,588.31 = 496,390.51 : x
  2. Step 2: Convert to fraction form
    909,878.35/1,255,588.31 = 496,390.51/x
  3. Step 3: Cross multiply
    909,878.35x = 1,255,588.31 × 496,390.51
  4. Step 4: Simplify right side
    909,878.35x = 623,262,121,569.20
  5. Step 5: Solve for x
    x = 623,262,121,569.20/909,878.35
  6. Step 6: Final answer
    x = 684,995.00

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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.