Home / 722,485.80-1,083,728.70-470,543.40

Finding the Fourth Proportional to 722,485.80, 1,083,728.70 and 470,543.40

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Solution

The fourth proportional to 722,485.80, 1,083,728.70 and 470,543.40 is: 705,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,485.80 : 1,083,728.70 = 470,543.40 : x
  2. Step 2: Convert to fraction form
    722,485.80/1,083,728.70 = 470,543.40/x
  3. Step 3: Cross multiply
    722,485.80x = 1,083,728.70 × 470,543.40
  4. Step 4: Simplify right side
    722,485.80x = 509,941,387,175.58
  5. Step 5: Solve for x
    x = 509,941,387,175.58/722,485.80
  6. Step 6: Final answer
    x = 705,815.10

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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.