Home / 810,411.09-1,118,337.21-447,827.42

Finding the Fourth Proportional to 810,411.09, 1,118,337.21 and 447,827.42

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Solution

The fourth proportional to 810,411.09, 1,118,337.21 and 447,827.42 is: 617,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,411.09 : 1,118,337.21 = 447,827.42 : x
  2. Step 2: Convert to fraction form
    810,411.09/1,118,337.21 = 447,827.42/x
  3. Step 3: Cross multiply
    810,411.09x = 1,118,337.21 × 447,827.42
  4. Step 4: Simplify right side
    810,411.09x = 500,822,061,852.61
  5. Step 5: Solve for x
    x = 500,822,061,852.61/810,411.09
  6. Step 6: Final answer
    x = 617,985.20

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1.5x scale

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.