Home / 740,690.08-1,022,153.72-401,158.40

Finding the Fourth Proportional to 740,690.08, 1,022,153.72 and 401,158.40

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Solution

The fourth proportional to 740,690.08, 1,022,153.72 and 401,158.40 is: 553,599.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,690.08 : 1,022,153.72 = 401,158.40 : x
  2. Step 2: Convert to fraction form
    740,690.08/1,022,153.72 = 401,158.40/x
  3. Step 3: Cross multiply
    740,690.08x = 1,022,153.72 × 401,158.40
  4. Step 4: Simplify right side
    740,690.08x = 410,045,550,869.25
  5. Step 5: Solve for x
    x = 410,045,550,869.25/740,690.08
  6. Step 6: Final answer
    x = 553,599.36

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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.