Home / 859,821.36-1,186,459.20-497,190.48

Finding the Fourth Proportional to 859,821.36, 1,186,459.20 and 497,190.48

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Solution

The fourth proportional to 859,821.36, 1,186,459.20 and 497,190.48 is: 686,068.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,821.36 : 1,186,459.20 = 497,190.48 : x
  2. Step 2: Convert to fraction form
    859,821.36/1,186,459.20 = 497,190.48/x
  3. Step 3: Cross multiply
    859,821.36x = 1,186,459.20 × 497,190.48
  4. Step 4: Simplify right side
    859,821.36x = 589,896,219,148.42
  5. Step 5: Solve for x
    x = 589,896,219,148.42/859,821.36
  6. Step 6: Final answer
    x = 686,068.35

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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.