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Finding the Fourth Proportional to 578,421.60, 866,595.60 and 495,477.60

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Solution

The fourth proportional to 578,421.60, 866,595.60 and 495,477.60 is: 742,328.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,421.60 : 866,595.60 = 495,477.60 : x
  2. Step 2: Convert to fraction form
    578,421.60/866,595.60 = 495,477.60/x
  3. Step 3: Cross multiply
    578,421.60x = 866,595.60 × 495,477.60
  4. Step 4: Simplify right side
    578,421.60x = 429,378,708,058.56
  5. Step 5: Solve for x
    x = 429,378,708,058.56/578,421.60
  6. Step 6: Final answer
    x = 742,328.27

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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.