Home / 885,725.16-1,328,798.64-286,686.42

Finding the Fourth Proportional to 885,725.16, 1,328,798.64 and 286,686.42

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Solution

The fourth proportional to 885,725.16, 1,328,798.64 and 286,686.42 is: 430,097.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,725.16 : 1,328,798.64 = 286,686.42 : x
  2. Step 2: Convert to fraction form
    885,725.16/1,328,798.64 = 286,686.42/x
  3. Step 3: Cross multiply
    885,725.16x = 1,328,798.64 × 286,686.42
  4. Step 4: Simplify right side
    885,725.16x = 380,948,525,002.47
  5. Step 5: Solve for x
    x = 380,948,525,002.47/885,725.16
  6. Step 6: Final answer
    x = 430,097.89

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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.