Home / 879,870.89-1,214,240.27-497,897.57

Finding the Fourth Proportional to 879,870.89, 1,214,240.27 and 497,897.57

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Solution

The fourth proportional to 879,870.89, 1,214,240.27 and 497,897.57 is: 687,109.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,870.89 : 1,214,240.27 = 497,897.57 : x
  2. Step 2: Convert to fraction form
    879,870.89/1,214,240.27 = 497,897.57/x
  3. Step 3: Cross multiply
    879,870.89x = 1,214,240.27 × 497,897.57
  4. Step 4: Simplify right side
    879,870.89x = 604,567,271,268.46
  5. Step 5: Solve for x
    x = 604,567,271,268.46/879,870.89
  6. Step 6: Final answer
    x = 687,109.08

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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.