Home / 1,221,047.04-1,685,148.40-677,358

Finding the Fourth Proportional to 1,221,047.04, 1,685,148.40 and 677,358

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Solution

The fourth proportional to 1,221,047.04, 1,685,148.40 and 677,358 is: 934,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,047.04 : 1,685,148.40 = 677,358 : x
  2. Step 2: Convert to fraction form
    1,221,047.04/1,685,148.40 = 677,358/x
  3. Step 3: Cross multiply
    1,221,047.04x = 1,685,148.40 × 677,358
  4. Step 4: Simplify right side
    1,221,047.04x = 1,141,448,749,927.20
  5. Step 5: Solve for x
    x = 1,141,448,749,927.20/1,221,047.04
  6. Step 6: Final answer
    x = 934,811.45

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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.