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Finding the Fourth Proportional to 507,482.10, 761,417.55 and 499,511.70

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Solution

The fourth proportional to 507,482.10, 761,417.55 and 499,511.70 is: 749,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,482.10 : 761,417.55 = 499,511.70 : x
  2. Step 2: Convert to fraction form
    507,482.10/761,417.55 = 499,511.70/x
  3. Step 3: Cross multiply
    507,482.10x = 761,417.55 × 499,511.70
  4. Step 4: Simplify right side
    507,482.10x = 380,336,974,810.34
  5. Step 5: Solve for x
    x = 380,336,974,810.34/507,482.10
  6. Step 6: Final answer
    x = 749,458.90

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Double scale
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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.