Home / 1,187,666.40-1,781,326.80-346,130.40

Finding the Fourth Proportional to 1,187,666.40, 1,781,326.80 and 346,130.40

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Solution

The fourth proportional to 1,187,666.40, 1,781,326.80 and 346,130.40 is: 519,145.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,666.40 : 1,781,326.80 = 346,130.40 : x
  2. Step 2: Convert to fraction form
    1,187,666.40/1,781,326.80 = 346,130.40/x
  3. Step 3: Cross multiply
    1,187,666.40x = 1,781,326.80 × 346,130.40
  4. Step 4: Simplify right side
    1,187,666.40x = 616,571,357,814.72
  5. Step 5: Solve for x
    x = 616,571,357,814.72/1,187,666.40
  6. Step 6: Final answer
    x = 519,145.24

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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.