Home / 722,478.80-1,083,718.20-470,536.40

Finding the Fourth Proportional to 722,478.80, 1,083,718.20 and 470,536.40

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Solution

The fourth proportional to 722,478.80, 1,083,718.20 and 470,536.40 is: 705,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,478.80 : 1,083,718.20 = 470,536.40 : x
  2. Step 2: Convert to fraction form
    722,478.80/1,083,718.20 = 470,536.40/x
  3. Step 3: Cross multiply
    722,478.80x = 1,083,718.20 × 470,536.40
  4. Step 4: Simplify right side
    722,478.80x = 509,928,860,442.48
  5. Step 5: Solve for x
    x = 509,928,860,442.48/722,478.80
  6. Step 6: Final answer
    x = 705,804.60

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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.