Home / 977,485.80-1,466,228.70-577,920.90

Finding the Fourth Proportional to 977,485.80, 1,466,228.70 and 577,920.90

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Solution

The fourth proportional to 977,485.80, 1,466,228.70 and 577,920.90 is: 866,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,485.80 : 1,466,228.70 = 577,920.90 : x
  2. Step 2: Convert to fraction form
    977,485.80/1,466,228.70 = 577,920.90/x
  3. Step 3: Cross multiply
    977,485.80x = 1,466,228.70 × 577,920.90
  4. Step 4: Simplify right side
    977,485.80x = 847,364,209,909.83
  5. Step 5: Solve for x
    x = 847,364,209,909.83/977,485.80
  6. Step 6: Final answer
    x = 866,881.35

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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.