Home / 486,948.06-671,975.79-272,089.89

Finding the Fourth Proportional to 486,948.06, 671,975.79 and 272,089.89

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Solution

The fourth proportional to 486,948.06, 671,975.79 and 272,089.89 is: 375,477.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,948.06 : 671,975.79 = 272,089.89 : x
  2. Step 2: Convert to fraction form
    486,948.06/671,975.79 = 272,089.89/x
  3. Step 3: Cross multiply
    486,948.06x = 671,975.79 × 272,089.89
  4. Step 4: Simplify right side
    486,948.06x = 182,837,818,783.76
  5. Step 5: Solve for x
    x = 182,837,818,783.76/486,948.06
  6. Step 6: Final answer
    x = 375,477.05

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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.