Home / 1,312,755.40-1,811,602.02-709,143.40

Finding the Fourth Proportional to 1,312,755.40, 1,811,602.02 and 709,143.40

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Solution

The fourth proportional to 1,312,755.40, 1,811,602.02 and 709,143.40 is: 978,617.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,755.40 : 1,811,602.02 = 709,143.40 : x
  2. Step 2: Convert to fraction form
    1,312,755.40/1,811,602.02 = 709,143.40/x
  3. Step 3: Cross multiply
    1,312,755.40x = 1,811,602.02 × 709,143.40
  4. Step 4: Simplify right side
    1,312,755.40x = 1,284,685,615,909.67
  5. Step 5: Solve for x
    x = 1,284,685,615,909.67/1,312,755.40
  6. Step 6: Final answer
    x = 978,617.66

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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.