Finding the Fourth Proportional to 732,646.12, 1,011,545.34 and 457,423.42
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Solution
The fourth proportional to 732,646.12, 1,011,545.34 and 457,423.42 is: 631,552.55
Step by Step Solution
- Step 1: Write the proportion equation
732,646.12 : 1,011,545.34 = 457,423.42 : x - Step 2: Convert to fraction form
732,646.12/1,011,545.34 = 457,423.42/x - Step 3: Cross multiply
732,646.12x = 1,011,545.34 × 457,423.42 - Step 4: Simplify right side
732,646.12x = 462,704,528,907.86 - Step 5: Solve for x
x = 462,704,528,907.86/732,646.12 - Step 6: Final answer
x = 631,552.55
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1.5x scale
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.