Home / 742,276.90-1,113,415.35-553,320.10

Finding the Fourth Proportional to 742,276.90, 1,113,415.35 and 553,320.10

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Solution

The fourth proportional to 742,276.90, 1,113,415.35 and 553,320.10 is: 829,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,276.90 : 1,113,415.35 = 553,320.10 : x
  2. Step 2: Convert to fraction form
    742,276.90/1,113,415.35 = 553,320.10/x
  3. Step 3: Cross multiply
    742,276.90x = 1,113,415.35 × 553,320.10
  4. Step 4: Simplify right side
    742,276.90x = 616,075,092,803.54
  5. Step 5: Solve for x
    x = 616,075,092,803.54/742,276.90
  6. Step 6: Final answer
    x = 829,980.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.