Home / 779,413.56-1,075,568.94-439,913.40

Finding the Fourth Proportional to 779,413.56, 1,075,568.94 and 439,913.40

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Solution

The fourth proportional to 779,413.56, 1,075,568.94 and 439,913.40 is: 607,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,413.56 : 1,075,568.94 = 439,913.40 : x
  2. Step 2: Convert to fraction form
    779,413.56/1,075,568.94 = 439,913.40/x
  3. Step 3: Cross multiply
    779,413.56x = 1,075,568.94 × 439,913.40
  4. Step 4: Simplify right side
    779,413.56x = 473,157,189,329.80
  5. Step 5: Solve for x
    x = 473,157,189,329.80/779,413.56
  6. Step 6: Final answer
    x = 607,068.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.