Home / 743,566.64-1,026,119.44-421,338.16

Finding the Fourth Proportional to 743,566.64, 1,026,119.44 and 421,338.16

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Solution

The fourth proportional to 743,566.64, 1,026,119.44 and 421,338.16 is: 581,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,566.64 : 1,026,119.44 = 421,338.16 : x
  2. Step 2: Convert to fraction form
    743,566.64/1,026,119.44 = 421,338.16/x
  3. Step 3: Cross multiply
    743,566.64x = 1,026,119.44 × 421,338.16
  4. Step 4: Simplify right side
    743,566.64x = 432,343,272,827.23
  5. Step 5: Solve for x
    x = 432,343,272,827.23/743,566.64
  6. Step 6: Final answer
    x = 581,445.23

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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.