Home / 770,298.95-1,154,999.14-320,480.77

Finding the Fourth Proportional to 770,298.95, 1,154,999.14 and 320,480.77

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Solution

The fourth proportional to 770,298.95, 1,154,999.14 and 320,480.77 is: 480,534.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,298.95 : 1,154,999.14 = 320,480.77 : x
  2. Step 2: Convert to fraction form
    770,298.95/1,154,999.14 = 320,480.77/x
  3. Step 3: Cross multiply
    770,298.95x = 1,154,999.14 × 320,480.77
  4. Step 4: Simplify right side
    770,298.95x = 370,155,010,047.84
  5. Step 5: Solve for x
    x = 370,155,010,047.84/770,298.95
  6. Step 6: Final answer
    x = 480,534.23

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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.