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Finding the Fourth Proportional to 450,692.60, 621,955.92 and 249,488.60

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Solution

The fourth proportional to 450,692.60, 621,955.92 and 249,488.60 is: 344,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,692.60 : 621,955.92 = 249,488.60 : x
  2. Step 2: Convert to fraction form
    450,692.60/621,955.92 = 249,488.60/x
  3. Step 3: Cross multiply
    450,692.60x = 621,955.92 × 249,488.60
  4. Step 4: Simplify right side
    450,692.60x = 155,170,911,742.51
  5. Step 5: Solve for x
    x = 155,170,911,742.51/450,692.60
  6. Step 6: Final answer
    x = 344,294.34

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1.5x scale

Why These Related Problems?

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