Home / 758,477.60-1,139,028.60-493,413.20

Finding the Fourth Proportional to 758,477.60, 1,139,028.60 and 493,413.20

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Solution

The fourth proportional to 758,477.60, 1,139,028.60 and 493,413.20 is: 740,973.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,477.60 : 1,139,028.60 = 493,413.20 : x
  2. Step 2: Convert to fraction form
    758,477.60/1,139,028.60 = 493,413.20/x
  3. Step 3: Cross multiply
    758,477.60x = 1,139,028.60 × 493,413.20
  4. Step 4: Simplify right side
    758,477.60x = 562,011,746,417.52
  5. Step 5: Solve for x
    x = 562,011,746,417.52/758,477.60
  6. Step 6: Final answer
    x = 740,973.43

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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.