Home / 760,820.97-1,049,920.08-421,281.93

Finding the Fourth Proportional to 760,820.97, 1,049,920.08 and 421,281.93

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Solution

The fourth proportional to 760,820.97, 1,049,920.08 and 421,281.93 is: 581,361.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,820.97 : 1,049,920.08 = 421,281.93 : x
  2. Step 2: Convert to fraction form
    760,820.97/1,049,920.08 = 421,281.93/x
  3. Step 3: Cross multiply
    760,820.97x = 1,049,920.08 × 421,281.93
  4. Step 4: Simplify right side
    760,820.97x = 442,312,357,648.15
  5. Step 5: Solve for x
    x = 442,312,357,648.15/760,820.97
  6. Step 6: Final answer
    x = 581,361.94

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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.