Home / 916,780.06-1,265,021.60-508,885.02

Finding the Fourth Proportional to 916,780.06, 1,265,021.60 and 508,885.02

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Solution

The fourth proportional to 916,780.06, 1,265,021.60 and 508,885.02 is: 702,186.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,780.06 : 1,265,021.60 = 508,885.02 : x
  2. Step 2: Convert to fraction form
    916,780.06/1,265,021.60 = 508,885.02/x
  3. Step 3: Cross multiply
    916,780.06x = 1,265,021.60 × 508,885.02
  4. Step 4: Simplify right side
    916,780.06x = 643,750,533,346.90
  5. Step 5: Solve for x
    x = 643,750,533,346.90/916,780.06
  6. Step 6: Final answer
    x = 702,186.45

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1.5x scale

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.