Home / 712,878.20-1,069,317.30-460,935.80

Finding the Fourth Proportional to 712,878.20, 1,069,317.30 and 460,935.80

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Solution

The fourth proportional to 712,878.20, 1,069,317.30 and 460,935.80 is: 691,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,878.20 : 1,069,317.30 = 460,935.80 : x
  2. Step 2: Convert to fraction form
    712,878.20/1,069,317.30 = 460,935.80/x
  3. Step 3: Cross multiply
    712,878.20x = 1,069,317.30 × 460,935.80
  4. Step 4: Simplify right side
    712,878.20x = 492,886,625,129.34
  5. Step 5: Solve for x
    x = 492,886,625,129.34/712,878.20
  6. Step 6: Final answer
    x = 691,403.70

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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.