Home / 790,085.61-1,090,315.94-427,515.62

Finding the Fourth Proportional to 790,085.61, 1,090,315.94 and 427,515.62

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Solution

The fourth proportional to 790,085.61, 1,090,315.94 and 427,515.62 is: 589,970.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,085.61 : 1,090,315.94 = 427,515.62 : x
  2. Step 2: Convert to fraction form
    790,085.61/1,090,315.94 = 427,515.62/x
  3. Step 3: Cross multiply
    790,085.61x = 1,090,315.94 × 427,515.62
  4. Step 4: Simplify right side
    790,085.61x = 466,127,087,495.83
  5. Step 5: Solve for x
    x = 466,127,087,495.83/790,085.61
  6. Step 6: Final answer
    x = 589,970.35

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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.