Home / 770,140.80-1,154,433.60-349,718.40

Finding the Fourth Proportional to 770,140.80, 1,154,433.60 and 349,718.40

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Solution

The fourth proportional to 770,140.80, 1,154,433.60 and 349,718.40 is: 524,224.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,140.80 : 1,154,433.60 = 349,718.40 : x
  2. Step 2: Convert to fraction form
    770,140.80/1,154,433.60 = 349,718.40/x
  3. Step 3: Cross multiply
    770,140.80x = 1,154,433.60 × 349,718.40
  4. Step 4: Simplify right side
    770,140.80x = 403,726,671,498.24
  5. Step 5: Solve for x
    x = 403,726,671,498.24/770,140.80
  6. Step 6: Final answer
    x = 524,224.49

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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.