Finding the Fourth Proportional to 690,039,432.68, 1,035,382,373.34 and 340,094,732.84
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Solution
The fourth proportional to 690,039,432.68, 1,035,382,373.34 and 340,094,732.84 is: 510,301,404.49
Step by Step Solution
- Step 1: Write the proportion equation
690,039,432.68 : 1,035,382,373.34 = 340,094,732.84 : x - Step 2: Convert to fraction form
690,039,432.68/1,035,382,373.34 = 340,094,732.84/x - Step 3: Cross multiply
690,039,432.68x = 1,035,382,373.34 × 340,094,732.84 - Step 4: Simplify right side
690,039,432.68x = 352,128,091,648,312,448 - Step 5: Solve for x
x = 352,128,091,648,312,448/690,039,432.68 - Step 6: Final answer
x = 510,301,404.49
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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.