Home / 830,459.61-1,146,034.21-448,486.35

Finding the Fourth Proportional to 830,459.61, 1,146,034.21 and 448,486.35

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Solution

The fourth proportional to 830,459.61, 1,146,034.21 and 448,486.35 is: 618,911.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,459.61 : 1,146,034.21 = 448,486.35 : x
  2. Step 2: Convert to fraction form
    830,459.61/1,146,034.21 = 448,486.35/x
  3. Step 3: Cross multiply
    830,459.61x = 1,146,034.21 × 448,486.35
  4. Step 4: Simplify right side
    830,459.61x = 513,980,699,818.03
  5. Step 5: Solve for x
    x = 513,980,699,818.03/830,459.61
  6. Step 6: Final answer
    x = 618,911.14

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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.