Home / 919,613.30-1,379,463.15-288,547.70

Finding the Fourth Proportional to 919,613.30, 1,379,463.15 and 288,547.70

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Solution

The fourth proportional to 919,613.30, 1,379,463.15 and 288,547.70 is: 432,835.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,613.30 : 1,379,463.15 = 288,547.70 : x
  2. Step 2: Convert to fraction form
    919,613.30/1,379,463.15 = 288,547.70/x
  3. Step 3: Cross multiply
    919,613.30x = 1,379,463.15 × 288,547.70
  4. Step 4: Simplify right side
    919,613.30x = 398,040,919,167.26
  5. Step 5: Solve for x
    x = 398,040,919,167.26/919,613.30
  6. Step 6: Final answer
    x = 432,835.10

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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.