Home / 812,368.26-1,120,715.26-489,899.16

Finding the Fourth Proportional to 812,368.26, 1,120,715.26 and 489,899.16

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Solution

The fourth proportional to 812,368.26, 1,120,715.26 and 489,899.16 is: 675,848.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,368.26 : 1,120,715.26 = 489,899.16 : x
  2. Step 2: Convert to fraction form
    812,368.26/1,120,715.26 = 489,899.16/x
  3. Step 3: Cross multiply
    812,368.26x = 1,120,715.26 × 489,899.16
  4. Step 4: Simplify right side
    812,368.26x = 549,037,463,248.43
  5. Step 5: Solve for x
    x = 549,037,463,248.43/812,368.26
  6. Step 6: Final answer
    x = 675,848.00

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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.