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Finding the Fourth Proportional to 545,730.30, 818,595.45 and 530,178.30

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Solution

The fourth proportional to 545,730.30, 818,595.45 and 530,178.30 is: 795,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,730.30 : 818,595.45 = 530,178.30 : x
  2. Step 2: Convert to fraction form
    545,730.30/818,595.45 = 530,178.30/x
  3. Step 3: Cross multiply
    545,730.30x = 818,595.45 × 530,178.30
  4. Step 4: Simplify right side
    545,730.30x = 434,001,544,068.74
  5. Step 5: Solve for x
    x = 434,001,544,068.74/545,730.30
  6. Step 6: Final answer
    x = 795,267.45

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Double scale
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Similar ratio
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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.