Home / 889,460.80-1,334,230.08-290,417.28

Finding the Fourth Proportional to 889,460.80, 1,334,230.08 and 290,417.28

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Solution

The fourth proportional to 889,460.80, 1,334,230.08 and 290,417.28 is: 435,638.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,460.80 : 1,334,230.08 = 290,417.28 : x
  2. Step 2: Convert to fraction form
    889,460.80/1,334,230.08 = 290,417.28/x
  3. Step 3: Cross multiply
    889,460.80x = 1,334,230.08 × 290,417.28
  4. Step 4: Simplify right side
    889,460.80x = 387,483,470,727.78
  5. Step 5: Solve for x
    x = 387,483,470,727.78/889,460.80
  6. Step 6: Final answer
    x = 435,638.61

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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.