Home / 1,020,386.08-1,408,145.75-561,553.48

Finding the Fourth Proportional to 1,020,386.08, 1,408,145.75 and 561,553.48

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Solution

The fourth proportional to 1,020,386.08, 1,408,145.75 and 561,553.48 is: 774,950.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,386.08 : 1,408,145.75 = 561,553.48 : x
  2. Step 2: Convert to fraction form
    1,020,386.08/1,408,145.75 = 561,553.48/x
  3. Step 3: Cross multiply
    1,020,386.08x = 1,408,145.75 × 561,553.48
  4. Step 4: Simplify right side
    1,020,386.08x = 790,749,146,259.71
  5. Step 5: Solve for x
    x = 790,749,146,259.71/1,020,386.08
  6. Step 6: Final answer
    x = 774,950.93

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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.