Home / 1,390,341.60-2,085,512.40-1,075,413.60

Finding the Fourth Proportional to 1,390,341.60, 2,085,512.40 and 1,075,413.60

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Solution

The fourth proportional to 1,390,341.60, 2,085,512.40 and 1,075,413.60 is: 1,613,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,341.60 : 2,085,512.40 = 1,075,413.60 : x
  2. Step 2: Convert to fraction form
    1,390,341.60/2,085,512.40 = 1,075,413.60/x
  3. Step 3: Cross multiply
    1,390,341.60x = 2,085,512.40 × 1,075,413.60
  4. Step 4: Simplify right side
    1,390,341.60x = 2,242,788,397,928.64
  5. Step 5: Solve for x
    x = 2,242,788,397,928.64/1,390,341.60
  6. Step 6: Final answer
    x = 1,613,120.40

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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.