Home / 977,465.40-1,465,128.90-346,054.20

Finding the Fourth Proportional to 977,465.40, 1,465,128.90 and 346,054.20

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Solution

The fourth proportional to 977,465.40, 1,465,128.90 and 346,054.20 is: 518,702.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,465.40 : 1,465,128.90 = 346,054.20 : x
  2. Step 2: Convert to fraction form
    977,465.40/1,465,128.90 = 346,054.20/x
  3. Step 3: Cross multiply
    977,465.40x = 1,465,128.90 × 346,054.20
  4. Step 4: Simplify right side
    977,465.40x = 507,014,009,386.38
  5. Step 5: Solve for x
    x = 507,014,009,386.38/977,465.40
  6. Step 6: Final answer
    x = 518,702.77

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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.