Home / 760,674.35-1,049,801.03-421,142.60

Finding the Fourth Proportional to 760,674.35, 1,049,801.03 and 421,142.60

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Solution

The fourth proportional to 760,674.35, 1,049,801.03 and 421,142.60 is: 581,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,674.35 : 1,049,801.03 = 421,142.60 : x
  2. Step 2: Convert to fraction form
    760,674.35/1,049,801.03 = 421,142.60/x
  3. Step 3: Cross multiply
    760,674.35x = 1,049,801.03 × 421,142.60
  4. Step 4: Simplify right side
    760,674.35x = 442,115,927,902.16
  5. Step 5: Solve for x
    x = 442,115,927,902.16/760,674.35
  6. Step 6: Final answer
    x = 581,215.77

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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.