Home / 1,021,686.02-1,532,879.13-390,780.26

Finding the Fourth Proportional to 1,021,686.02, 1,532,879.13 and 390,780.26

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Solution

The fourth proportional to 1,021,686.02, 1,532,879.13 and 390,780.26 is: 586,304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,686.02 : 1,532,879.13 = 390,780.26 : x
  2. Step 2: Convert to fraction form
    1,021,686.02/1,532,879.13 = 390,780.26/x
  3. Step 3: Cross multiply
    1,021,686.02x = 1,532,879.13 × 390,780.26
  4. Step 4: Simplify right side
    1,021,686.02x = 599,018,904,969.97
  5. Step 5: Solve for x
    x = 599,018,904,969.97/1,021,686.02
  6. Step 6: Final answer
    x = 586,304.30

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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.