Home / 761,176.24-1,050,420.36-421,637.20

Finding the Fourth Proportional to 761,176.24, 1,050,420.36 and 421,637.20

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Solution

The fourth proportional to 761,176.24, 1,050,420.36 and 421,637.20 is: 581,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,176.24 : 1,050,420.36 = 421,637.20 : x
  2. Step 2: Convert to fraction form
    761,176.24/1,050,420.36 = 421,637.20/x
  3. Step 3: Cross multiply
    761,176.24x = 1,050,420.36 × 421,637.20
  4. Step 4: Simplify right side
    761,176.24x = 442,896,299,413.39
  5. Step 5: Solve for x
    x = 442,896,299,413.39/761,176.24
  6. Step 6: Final answer
    x = 581,857.76

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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.