Home / 877,779.25-1,316,669.43-212,931.25

Finding the Fourth Proportional to 877,779.25, 1,316,669.43 and 212,931.25

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Solution

The fourth proportional to 877,779.25, 1,316,669.43 and 212,931.25 is: 319,397.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,779.25 : 1,316,669.43 = 212,931.25 : x
  2. Step 2: Convert to fraction form
    877,779.25/1,316,669.43 = 212,931.25/x
  3. Step 3: Cross multiply
    877,779.25x = 1,316,669.43 × 212,931.25
  4. Step 4: Simplify right side
    877,779.25x = 280,360,067,566.69
  5. Step 5: Solve for x
    x = 280,360,067,566.69/877,779.25
  6. Step 6: Final answer
    x = 319,397.01

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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.