Finding the Fourth Proportional to 1,565,432.70, 2,159,342.28 and 1,035,002.13
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Solution
The fourth proportional to 1,565,432.70, 2,159,342.28 and 1,035,002.13 is: 1,427,671.63
Step by Step Solution
- Step 1: Write the proportion equation
1,565,432.70 : 2,159,342.28 = 1,035,002.13 : x - Step 2: Convert to fraction form
1,565,432.70/2,159,342.28 = 1,035,002.13/x - Step 3: Cross multiply
1,565,432.70x = 2,159,342.28 × 1,035,002.13 - Step 4: Simplify right side
1,565,432.70x = 2,234,923,859,199.06 - Step 5: Solve for x
x = 2,234,923,859,199.06/1,565,432.70 - Step 6: Final answer
x = 1,427,671.63
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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.