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Finding the Fourth Proportional to 581,264.80, 872,588.40 and 328,746.40

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Solution

The fourth proportional to 581,264.80, 872,588.40 and 328,746.40 is: 493,510.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,264.80 : 872,588.40 = 328,746.40 : x
  2. Step 2: Convert to fraction form
    581,264.80/872,588.40 = 328,746.40/x
  3. Step 3: Cross multiply
    581,264.80x = 872,588.40 × 328,746.40
  4. Step 4: Simplify right side
    581,264.80x = 286,860,295,181.76
  5. Step 5: Solve for x
    x = 286,860,295,181.76/581,264.80
  6. Step 6: Final answer
    x = 493,510.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.