Home / 760,871.70-1,050,079.44-421,339.92

Finding the Fourth Proportional to 760,871.70, 1,050,079.44 and 421,339.92

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Solution

The fourth proportional to 760,871.70, 1,050,079.44 and 421,339.92 is: 581,491.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,871.70 : 1,050,079.44 = 421,339.92 : x
  2. Step 2: Convert to fraction form
    760,871.70/1,050,079.44 = 421,339.92/x
  3. Step 3: Cross multiply
    760,871.70x = 1,050,079.44 × 421,339.92
  4. Step 4: Simplify right side
    760,871.70x = 442,440,387,243.25
  5. Step 5: Solve for x
    x = 442,440,387,243.25/760,871.70
  6. Step 6: Final answer
    x = 581,491.45

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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.