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Finding the Fourth Proportional to 615,730.60, 921,846.30 and 545,746.60

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Solution

The fourth proportional to 615,730.60, 921,846.30 and 545,746.60 is: 817,069.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,730.60 : 921,846.30 = 545,746.60 : x
  2. Step 2: Convert to fraction form
    615,730.60/921,846.30 = 545,746.60/x
  3. Step 3: Cross multiply
    615,730.60x = 921,846.30 × 545,746.60
  4. Step 4: Simplify right side
    615,730.60x = 503,094,483,947.58
  5. Step 5: Solve for x
    x = 503,094,483,947.58/615,730.60
  6. Step 6: Final answer
    x = 817,069.16

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1.5x scale

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.