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Finding the Fourth Proportional to 779,420.80, 1,075,492.80 and 435,214.72

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Solution

The fourth proportional to 779,420.80, 1,075,492.80 and 435,214.72 is: 600,536.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,420.80 : 1,075,492.80 = 435,214.72 : x
  2. Step 2: Convert to fraction form
    779,420.80/1,075,492.80 = 435,214.72/x
  3. Step 3: Cross multiply
    779,420.80x = 1,075,492.80 × 435,214.72
  4. Step 4: Simplify right side
    779,420.80x = 468,070,297,814.02
  5. Step 5: Solve for x
    x = 468,070,297,814.02/779,420.80
  6. Step 6: Final answer
    x = 600,536.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.