Finding the Fourth Proportional to 971,199.30, 1,456,798.95 and 912,101.70
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Solution
The fourth proportional to 971,199.30, 1,456,798.95 and 912,101.70 is: 1,368,152.55
Step by Step Solution
- Step 1: Write the proportion equation
971,199.30 : 1,456,798.95 = 912,101.70 : x - Step 2: Convert to fraction form
971,199.30/1,456,798.95 = 912,101.70/x - Step 3: Cross multiply
971,199.30x = 1,456,798.95 × 912,101.70 - Step 4: Simplify right side
971,199.30x = 1,328,748,798,853.21 - Step 5: Solve for x
x = 1,328,748,798,853.21/971,199.30 - Step 6: Final answer
x = 1,368,152.55
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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.