Home / 712,875.13-983,767.48-390,597.46

Finding the Fourth Proportional to 712,875.13, 983,767.48 and 390,597.46

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Solution

The fourth proportional to 712,875.13, 983,767.48 and 390,597.46 is: 539,024.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,875.13 : 983,767.48 = 390,597.46 : x
  2. Step 2: Convert to fraction form
    712,875.13/983,767.48 = 390,597.46/x
  3. Step 3: Cross multiply
    712,875.13x = 983,767.48 × 390,597.46
  4. Step 4: Simplify right side
    712,875.13x = 384,257,078,918.60
  5. Step 5: Solve for x
    x = 384,257,078,918.60/712,875.13
  6. Step 6: Final answer
    x = 539,024.39

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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.