Home / 760,966.65-1,050,131.79-421,434.90

Finding the Fourth Proportional to 760,966.65, 1,050,131.79 and 421,434.90

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Solution

The fourth proportional to 760,966.65, 1,050,131.79 and 421,434.90 is: 581,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,966.65 : 1,050,131.79 = 421,434.90 : x
  2. Step 2: Convert to fraction form
    760,966.65/1,050,131.79 = 421,434.90/x
  3. Step 3: Cross multiply
    760,966.65x = 1,050,131.79 × 421,434.90
  4. Step 4: Simplify right side
    760,966.65x = 442,562,185,905.47
  5. Step 5: Solve for x
    x = 442,562,185,905.47/760,966.65
  6. Step 6: Final answer
    x = 581,578.95

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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.