Home / 579,505.20-869,257.80-549,980.70

Finding the Fourth Proportional to 579,505.20, 869,257.80 and 549,980.70

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Solution

The fourth proportional to 579,505.20, 869,257.80 and 549,980.70 is: 824,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,505.20 : 869,257.80 = 549,980.70 : x
  2. Step 2: Convert to fraction form
    579,505.20/869,257.80 = 549,980.70/x
  3. Step 3: Cross multiply
    579,505.20x = 869,257.80 × 549,980.70
  4. Step 4: Simplify right side
    579,505.20x = 478,075,013,324.46
  5. Step 5: Solve for x
    x = 478,075,013,324.46/579,505.20
  6. Step 6: Final answer
    x = 824,971.05

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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.