Home / 1,121,835.48-1,547,962.08-631,779.21

Finding the Fourth Proportional to 1,121,835.48, 1,547,962.08 and 631,779.21

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Solution

The fourth proportional to 1,121,835.48, 1,547,962.08 and 631,779.21 is: 871,759.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,835.48 : 1,547,962.08 = 631,779.21 : x
  2. Step 2: Convert to fraction form
    1,121,835.48/1,547,962.08 = 631,779.21/x
  3. Step 3: Cross multiply
    1,121,835.48x = 1,547,962.08 × 631,779.21
  4. Step 4: Simplify right side
    1,121,835.48x = 977,970,260,012.36
  5. Step 5: Solve for x
    x = 977,970,260,012.36/1,121,835.48
  6. Step 6: Final answer
    x = 871,759.07

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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.