Home / 931,021.02-1,284,809.85-528,613.02

Finding the Fourth Proportional to 931,021.02, 1,284,809.85 and 528,613.02

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Solution

The fourth proportional to 931,021.02, 1,284,809.85 and 528,613.02 is: 729,486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,021.02 : 1,284,809.85 = 528,613.02 : x
  2. Step 2: Convert to fraction form
    931,021.02/1,284,809.85 = 528,613.02/x
  3. Step 3: Cross multiply
    931,021.02x = 1,284,809.85 × 528,613.02
  4. Step 4: Simplify right side
    931,021.02x = 679,167,214,934.25
  5. Step 5: Solve for x
    x = 679,167,214,934.25/931,021.02
  6. Step 6: Final answer
    x = 729,486.45

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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.