Home / 879,622.47-1,213,870.80-497,649.25

Finding the Fourth Proportional to 879,622.47, 1,213,870.80 and 497,649.25

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Solution

The fourth proportional to 879,622.47, 1,213,870.80 and 497,649.25 is: 686,751.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,622.47 : 1,213,870.80 = 497,649.25 : x
  2. Step 2: Convert to fraction form
    879,622.47/1,213,870.80 = 497,649.25/x
  3. Step 3: Cross multiply
    879,622.47x = 1,213,870.80 × 497,649.25
  4. Step 4: Simplify right side
    879,622.47x = 604,081,890,182.22
  5. Step 5: Solve for x
    x = 604,081,890,182.22/879,622.47
  6. Step 6: Final answer
    x = 686,751.32

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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.