Home / 885,732.12-1,328,809.10-286,693.40

Finding the Fourth Proportional to 885,732.12, 1,328,809.10 and 286,693.40

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Solution

The fourth proportional to 885,732.12, 1,328,809.10 and 286,693.40 is: 430,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,732.12 : 1,328,809.10 = 286,693.40 : x
  2. Step 2: Convert to fraction form
    885,732.12/1,328,809.10 = 286,693.40/x
  3. Step 3: Cross multiply
    885,732.12x = 1,328,809.10 × 286,693.40
  4. Step 4: Simplify right side
    885,732.12x = 380,960,798,829.94
  5. Step 5: Solve for x
    x = 380,960,798,829.94/885,732.12
  6. Step 6: Final answer
    x = 430,108.37

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1.5x scale

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.