Home / 761,240.84-1,050,435.80-421,645.64

Finding the Fourth Proportional to 761,240.84, 1,050,435.80 and 421,645.64

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Solution

The fourth proportional to 761,240.84, 1,050,435.80 and 421,645.64 is: 581,828.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,240.84 : 1,050,435.80 = 421,645.64 : x
  2. Step 2: Convert to fraction form
    761,240.84/1,050,435.80 = 421,645.64/x
  3. Step 3: Cross multiply
    761,240.84x = 1,050,435.80 × 421,645.64
  4. Step 4: Simplify right side
    761,240.84x = 442,911,675,169.91
  5. Step 5: Solve for x
    x = 442,911,675,169.91/761,240.84
  6. Step 6: Final answer
    x = 581,828.58

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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.