Home / 993,721.12-1,371,341.80-564,008.40

Finding the Fourth Proportional to 993,721.12, 1,371,341.80 and 564,008.40

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Solution

The fourth proportional to 993,721.12, 1,371,341.80 and 564,008.40 is: 778,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,721.12 : 1,371,341.80 = 564,008.40 : x
  2. Step 2: Convert to fraction form
    993,721.12/1,371,341.80 = 564,008.40/x
  3. Step 3: Cross multiply
    993,721.12x = 1,371,341.80 × 564,008.40
  4. Step 4: Simplify right side
    993,721.12x = 773,448,294,471.12
  5. Step 5: Solve for x
    x = 773,448,294,471.12/993,721.12
  6. Step 6: Final answer
    x = 778,335.37

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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.