Home / 1,430,100.72-1,973,547.45-785,504.34

Finding the Fourth Proportional to 1,430,100.72, 1,973,547.45 and 785,504.34

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Solution

The fourth proportional to 1,430,100.72, 1,973,547.45 and 785,504.34 is: 1,084,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,100.72 : 1,973,547.45 = 785,504.34 : x
  2. Step 2: Convert to fraction form
    1,430,100.72/1,973,547.45 = 785,504.34/x
  3. Step 3: Cross multiply
    1,430,100.72x = 1,973,547.45 × 785,504.34
  4. Step 4: Simplify right side
    1,430,100.72x = 1,550,230,087,170.93
  5. Step 5: Solve for x
    x = 1,550,230,087,170.93/1,430,100.72
  6. Step 6: Final answer
    x = 1,084,000.63

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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.