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Finding the Fourth Proportional to 1,878,770, 2,818,673.40 and 549,074

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Solution

The fourth proportional to 1,878,770, 2,818,673.40 and 549,074 is: 823,762.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,770 : 2,818,673.40 = 549,074 : x
  2. Step 2: Convert to fraction form
    1,878,770/2,818,673.40 = 549,074/x
  3. Step 3: Cross multiply
    1,878,770x = 2,818,673.40 × 549,074
  4. Step 4: Simplify right side
    1,878,770x = 1,547,660,278,431.60
  5. Step 5: Solve for x
    x = 1,547,660,278,431.60/1,878,770
  6. Step 6: Final answer
    x = 823,762.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.