Home / 877,603.80-1,316,405.70-578,422.20

Finding the Fourth Proportional to 877,603.80, 1,316,405.70 and 578,422.20

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Solution

The fourth proportional to 877,603.80, 1,316,405.70 and 578,422.20 is: 867,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,603.80 : 1,316,405.70 = 578,422.20 : x
  2. Step 2: Convert to fraction form
    877,603.80/1,316,405.70 = 578,422.20/x
  3. Step 3: Cross multiply
    877,603.80x = 1,316,405.70 × 578,422.20
  4. Step 4: Simplify right side
    877,603.80x = 761,438,281,086.54
  5. Step 5: Solve for x
    x = 761,438,281,086.54/877,603.80
  6. Step 6: Final answer
    x = 867,633.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.