Finding the Fourth Proportional to 879,901.20, 1,319,317.20 and 346,807.80
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Solution
The fourth proportional to 879,901.20, 1,319,317.20 and 346,807.80 is: 520,000.99
Step by Step Solution
- Step 1: Write the proportion equation
879,901.20 : 1,319,317.20 = 346,807.80 : x - Step 2: Convert to fraction form
879,901.20/1,319,317.20 = 346,807.80/x - Step 3: Cross multiply
879,901.20x = 1,319,317.20 × 346,807.80 - Step 4: Simplify right side
879,901.20x = 457,549,495,634.16 - Step 5: Solve for x
x = 457,549,495,634.16/879,901.20 - Step 6: Final answer
x = 520,000.99
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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.