Home / 740,478.77-1,021,556.40-450,043.53

Finding the Fourth Proportional to 740,478.77, 1,021,556.40 and 450,043.53

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Solution

The fourth proportional to 740,478.77, 1,021,556.40 and 450,043.53 is: 620,875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,478.77 : 1,021,556.40 = 450,043.53 : x
  2. Step 2: Convert to fraction form
    740,478.77/1,021,556.40 = 450,043.53/x
  3. Step 3: Cross multiply
    740,478.77x = 1,021,556.40 × 450,043.53
  4. Step 4: Simplify right side
    740,478.77x = 459,744,848,350.09
  5. Step 5: Solve for x
    x = 459,744,848,350.09/740,478.77
  6. Step 6: Final answer
    x = 620,875.12

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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.