Home / 972,340.31-1,341,821.95-564,480.07

Finding the Fourth Proportional to 972,340.31, 1,341,821.95 and 564,480.07

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Solution

The fourth proportional to 972,340.31, 1,341,821.95 and 564,480.07 is: 778,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,340.31 : 1,341,821.95 = 564,480.07 : x
  2. Step 2: Convert to fraction form
    972,340.31/1,341,821.95 = 564,480.07/x
  3. Step 3: Cross multiply
    972,340.31x = 1,341,821.95 × 564,480.07
  4. Step 4: Simplify right side
    972,340.31x = 757,431,743,497.78
  5. Step 5: Solve for x
    x = 757,431,743,497.78/972,340.31
  6. Step 6: Final answer
    x = 778,978.03

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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.