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Finding the Fourth Proportional to 577,075.80, 865,613.70 and 549,519.60

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Solution

The fourth proportional to 577,075.80, 865,613.70 and 549,519.60 is: 824,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,075.80 : 865,613.70 = 549,519.60 : x
  2. Step 2: Convert to fraction form
    577,075.80/865,613.70 = 549,519.60/x
  3. Step 3: Cross multiply
    577,075.80x = 865,613.70 × 549,519.60
  4. Step 4: Simplify right side
    577,075.80x = 475,671,694,178.52
  5. Step 5: Solve for x
    x = 475,671,694,178.52/577,075.80
  6. Step 6: Final answer
    x = 824,279.40

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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.