Home / 989,351.08-1,483,024.86-390,734.32

Finding the Fourth Proportional to 989,351.08, 1,483,024.86 and 390,734.32

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Solution

The fourth proportional to 989,351.08, 1,483,024.86 and 390,734.32 is: 585,705.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,351.08 : 1,483,024.86 = 390,734.32 : x
  2. Step 2: Convert to fraction form
    989,351.08/1,483,024.86 = 390,734.32/x
  3. Step 3: Cross multiply
    989,351.08x = 1,483,024.86 × 390,734.32
  4. Step 4: Simplify right side
    989,351.08x = 579,468,710,215.20
  5. Step 5: Solve for x
    x = 579,468,710,215.20/989,351.08
  6. Step 6: Final answer
    x = 585,705.84

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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.