Home / 990,868.99-1,367,353.47-561,152.20

Finding the Fourth Proportional to 990,868.99, 1,367,353.47 and 561,152.20

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Solution

The fourth proportional to 990,868.99, 1,367,353.47 and 561,152.20 is: 774,364.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,868.99 : 1,367,353.47 = 561,152.20 : x
  2. Step 2: Convert to fraction form
    990,868.99/1,367,353.47 = 561,152.20/x
  3. Step 3: Cross multiply
    990,868.99x = 1,367,353.47 × 561,152.20
  4. Step 4: Simplify right side
    990,868.99x = 767,293,407,868.13
  5. Step 5: Solve for x
    x = 767,293,407,868.13/990,868.99
  6. Step 6: Final answer
    x = 774,364.13

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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.