Home / 740,272.95-1,021,579.94-400,741.20

Finding the Fourth Proportional to 740,272.95, 1,021,579.94 and 400,741.20

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Solution

The fourth proportional to 740,272.95, 1,021,579.94 and 400,741.20 is: 553,024.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,272.95 : 1,021,579.94 = 400,741.20 : x
  2. Step 2: Convert to fraction form
    740,272.95/1,021,579.94 = 400,741.20/x
  3. Step 3: Cross multiply
    740,272.95x = 1,021,579.94 × 400,741.20
  4. Step 4: Simplify right side
    740,272.95x = 409,389,169,047.82
  5. Step 5: Solve for x
    x = 409,389,169,047.82/740,272.95
  6. Step 6: Final answer
    x = 553,024.62

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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.