Home / 1,363,385.95-1,878,923.90-1,018,613.61

Finding the Fourth Proportional to 1,363,385.95, 1,878,923.90 and 1,018,613.61

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Solution

The fourth proportional to 1,363,385.95, 1,878,923.90 and 1,018,613.61 is: 1,403,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363,385.95 : 1,878,923.90 = 1,018,613.61 : x
  2. Step 2: Convert to fraction form
    1,363,385.95/1,878,923.90 = 1,018,613.61/x
  3. Step 3: Cross multiply
    1,363,385.95x = 1,878,923.90 × 1,018,613.61
  4. Step 4: Simplify right side
    1,363,385.95x = 1,913,897,459,240.81
  5. Step 5: Solve for x
    x = 1,913,897,459,240.81/1,363,385.95
  6. Step 6: Final answer
    x = 1,403,782.59

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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.