Home / 1,285,646.51-1,774,072.89-712,637.93

Finding the Fourth Proportional to 1,285,646.51, 1,774,072.89 and 712,637.93

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Solution

The fourth proportional to 1,285,646.51, 1,774,072.89 and 712,637.93 is: 983,374.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,646.51 : 1,774,072.89 = 712,637.93 : x
  2. Step 2: Convert to fraction form
    1,285,646.51/1,774,072.89 = 712,637.93/x
  3. Step 3: Cross multiply
    1,285,646.51x = 1,774,072.89 × 712,637.93
  4. Step 4: Simplify right side
    1,285,646.51x = 1,264,271,623,128.35
  5. Step 5: Solve for x
    x = 1,264,271,623,128.35/1,285,646.51
  6. Step 6: Final answer
    x = 983,374.22

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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.